>>> TONIGHT, CONGRESSMAN GEORGE SANTOS INDICTED, ARRAIGNED, BUT NOT STEPPING DOWN. THE CIRCUS OUTSIDE FEDERAL COURT AS THE EMBATTLED REPUBLICAN WAS RELEASED ON $500,000 BOND DECLARING HE WILL NOT RESIGN, CHARGED WITH WIRE FRAUD, MONEY LAUNDERING, AND MORE. 13 COUNTS IN ALL. SANTOS CALLING IT A WITCH-HUNT, BUT DEMOCRATS AND REPUBLICANS ALIKE CALLING FOR HIM TO STEP DOWN TONIGHT. >>> E. JEAN CARROLL SPEAKING OUT ONE DAY AFTER A JURY FOUND DONALD TRUMP LIABLE FOR SEXUALLY ABUSING AND DEFAMING HER AWARDING HER $5 MILLION. WHAT CARROLL TOLD OUR SAVANNAH GUTHRIE ABOUT THE VERDICT. >>> THE RECORD NUMBER OF MIGRANTS APPREHENDED AT THE BORDER EVEN BEFORE THE TITLE 42 POLICY ENDS. WE'RE ON THE GROUND IN MEXICO. >>> PLUS, NBC'S NEW REPORTING ON HOW THE U.S. WILL HANDLE THOUSANDS OF PEOPLE ENTERING THE COUNTRY. >>> SHE WROTE A CHILDREN'S BOOK ABOUT GRIEF AFTER HER HUSBAND DIED. NOW, THE MOTHER OF THREE IS ACCUSED OF POISONING HIM WITH FENTANYL. THE NEW DETAILS FROM A SEARCH WARRANT JUST IN TONIGHT. >>> FOR THE FIRST TIME AN FDA PANEL ENDORSES OVER-THE-COUNTER BIRTH CONTROL PILLS. WHEN THEY WILL BE AVAILABLE. >>> AND THE NEW TREATMENT FOR PEANUT ALLERGIES IN THE YOUNGEST CHILDREN ONE STEP CLOSER TONIGHT. >> Announcer: THIS IS "NBC NIGHTLY NEWS" WITH LESTER HOLT. >>> GOOD EVENING, AND WELCOME. A REPUBLICAN CONGRESSMAN WHO WAS ACCUSED OF LAUNCHING A POLITICAL CAREER BUILT IN PART ON CLAIMS MADE UP WAS ARRESTED ON FEDERAL CHARGES. CONGRESSMAN GEORGE SANTOS TURNED HIMSELF IN TO AUTHORITIES ON LONG ISLAND, NEW YORK, THIS MORNING, WHERE HE HAS BEEN INDICTED ON 13 CRIMINAL COUNTS. THAT INCLUDES MONEY LAUNDERING, THEFT OF PUBLIC FUNDS, AND FALSE STATEMENTS TO CONGRESS. THE NEW YORK REPRESENTATIVE IS FREE ON BOND TONIGHT AFTER PLEADING NOT GUILTY, AFTERWARDS TELLING REPORTERS HE WOULD NOT RESIGN, THAT HE IS STILL RUNNING FOR RE-ELECTION AND VOWING HE WILL PROVE HIS INNOCENCE. THE INDICTMENT ALLEGING A SERIES OF ILLEGAL SCHEMES INCLUDING INSURANCE FRAUD AND USING CAMPAIGN FUNDS FOR PERSONAL EXPENSES. STEPHANIE GOSK WAS THERE TO QUESTION HIM OUTSIDE COURT. >> Reporter: MOMENTS AFTER PLEADING NOT GUILTY TO 13 FEDERAL CHARGES, GEORGE SANTOS WAS ON THE FEDERAL COURTHOUSE STEPS IN A CRUSH OF REPORTERS. >> I'M GOING TO FIGHT THE WITCH-HUNT. I'M GOING TO TAKE CARE OF CLEARING MY NAME AND LOOK FORWARD TO IT. >> Reporter: THE INDICTMENT ACCUSES THE FRESHMAN OF WIRE FRAUD, MONEY LAUNDERING, STEALING PUBLIC FUNDS AND LYING TO CONGRESS ABOUT HIS FINANCES. FEDERAL PROSECUTORS SAY SANTOS DEVISED AND EXECUTED A SCHEME TO DEFRAUD SUPPORTERS OF HIS CANDIDACY TELLING DONORS THEIR MONEY WOULD BE USED FOR THINGS LIKE CAMPAIGN ADS, BUT INSTEAD PAYING OFF PERSONAL DEBTS AND BUYING CLOTHES. CONGRESSMAN, DID YOU TAKE CAMPAIGN DONATIONS AND USE THAT MONEY TO BUY EXPENSIVE SUITS? >> NO, I DID NOT. >> Reporter: THE GOVERNMENT ALSO ACCUSES SANTOS OF COLLECTING TENS OF THOUSANDS OF DOLLARS IN UNEMPLOYMENT MONEY FROM THE STATE OF NEW YORK DURING THE PANDEMIC, ALL THE WHILE MAKING A SALARY OF $120,000 IN FLORIDA. >> THIS WAS INACCURATE INFORMATION, AND I WILL GET TO CLEAR MY NAME ON THIS -- DURING THE PANDEMIC, IT WASN'T VERY CLEAR. I DON'T UNDERSTAND WHERE THE GOVERNMENT IS GETTING THEIR INFORMATION BUT I WILL PRESENT MY FACTS. >> Reporter: IN THE 2022 MIDTERMS SANTOS BECAME THE FIRST OPENLY GAY REPUBLICAN ELECTED TO CONGRESS, BUT ALMOST IMMEDIATELY AFTER BEING SWORN IN, IT WAS REVEALED HE HAD MADE UP DETAILS ABOUT HIS EDUCATION AND WORK HISTORY. SANTOS EVENTUALLY ADMITTING HE NEVER GRADUATED FROM COLLEGE OR WORKED FOR WALL STREET FIRMS GOLDMAN SACHS AND CITIGROUP. >> WELL, I'VE BEEN A TERRIBLE LIAR ON THOSE SUBJECTS. >> Reporter: HE SAID HIS MOTHER SURVIVED 9/11. >> A SON OF TWO IMMIGRANT, I AM THE GRANDCHILD OF HOLOCAUST SURVIVORS AND THE SON OF A 9/11 SURVIVOR. >> Reporter: BUT IMMIGRATION RECORDS SHOW SHE HASN'T BEEN IN THE COUNTRY SINCE 1999. THE FEDERAL GOVERNMENT'S CASE FOCUSED ON ALLEGATIONS HE LIED AS WELL. DESPITE CALLS FROM HIS COLLEAGUES IN NEW YORK TO RESIGN -- >> HIS CONDUCT HAS BEEN EMBARRASSING AND DISGRACEFUL. >> Reporter: -- HE SAYS HE IS STAYING. HOUSE SPEAKER KEVIN McCARTHY TALKING ABOUT OTHERS WHO KEPT THEIR SEAT UNTIL COURT CASED PLAYED OUT. >> GO THROUGH THE TIME OF TRIAL AND FIND OUT HOW THE OUT COME IS. >> I HAVE TO GO BACK TOMORROW AND VOTE. >> Reporter: THAT MEANS GEORGE SANTOS IS GOING BACK TO WASHINGTON. >> STEPHANIE, SPEAKER McCARTHY IS MAKING NEW COMMENTS TONIGHT ABOUT SANTOS. >> Reporter: YEAH, JUST MOMENTS AGO LESTER, HE SAID HE WOULD NOT SUPPORT SANTOS' RE-ELECTION CAMPAIGN. MEANWHILE, SANTOS IS OUT ON A $500,000 BOND. HE FACES IF CONVICTED ON THESE CHARGES A MAXIMUM SENTENCE OF UP TO 20 YEARS BUT UNLIKELY HE WOULD GET A SENTENCE THAT LONG. >> STEPHANIE GOSK, THANK YOU. >>> ONE DAY AFTER THAT $5 MILLION BATTERY AND DEFAMATION VERDICT AGAINST FORMER PRESIDENT TRUMP, THE WRITER WHO BROUGHT THE LAWSUIT IS SPEAKING OUT ABOUT THE DECISION. LAURA JARRETT HAS MORE. >> I'M OVERWHELMED, OVERWHELMED WITH JOY. >> Reporter: WRITER E. JEAN CARROLL REACTING TO THE JURY'S QUICK VERDICT IN HER CASE AGAINST FORMER PRESIDENT TRUMP. >> THIS IS NOT ABOUT THE MONEY. THIS IS ABOUT GETTING MY NAME BACK. >> Reporter: CARROLL SAT DOWN WITH SAVANNAH GUTHRIE FOR HER FIRST TELEVISION INTERVIEW AFTER THE JURY FOUND MR. TRUMP SEXUALLY ABUSED HER IN A DEPARTMENT STORE DECADES AGO THOUGH THE JURY STOPPED SHORT OF FINDING HE RAPED HER. >> THERE WAS THE CONCEPT OF THE PERFECT VICTIM. THE PERFECT VICTIM ALWAYS SCREAM, ALWAYS REPORTS TO THE POLICE, AND YESTERDAY WE DEMOLISHED THAT OLD CONCEPT. >> Reporter: MR. TRUMP'S LAWYER JOE TACOPINA HAS VOWED TO APPEAL WHILE HIS CLIENT IS ON A SOCIAL MEDIA TEAR. >> IT'S A DISGRACE. I DON'T EVEN KNOW WHO THIS WOMAN IS. >> WHAT WOULD YOU WANT TO SAY TO HIM NOW? >> I SAID IT TO JOE TACOPINA YESTERDAY. HE CAME OVER TO CONGRATULATE ME, PUT OUT HIS HAND, AND I SAID, HE DID IT, AND YOU KNOW IT. >> Reporter: THE CIVIL VERDICT CARRIES NO JAIL TIME, BUT THE POLITICAL FALLOUT MORE COMPLICATED AS SOME 2024 PRESIDENTIAL HOPEFULS REFUSE TO ADDRESS IT. >> THAT'S SOMETHING FOR TRUMP TO RESPOND TO. >> SO I'VE BEEN -- I'VE BEEN PRETTY BUSY. >> Reporter: FORMER VICE PRESIDENT PENCE APPEARING DISMISSIVE OF THE CASE IN AN EXCLUSIVE INTERSLEW WITH DASHA BURNS. >> I DON'T THINK THE AMERICAN PEOPLE ARE FOCUSED ON IT. >> DO AMERICANS BELIEVE THAT THE ALLEGATIONS ARE TRUE? PROBABLY MOST OF THEM DO JUST LIKE THE JURY DID, SOME WILL EXCUSE IT. I DON'T BELIEVE IT'S EXCUSABLE AND DEFENSIBLE. >> Reporter: CHRIS CHRISTIE SAID TO BE STILL MULLING A WHITE HOUSE BID GOING EVEN FURTHER. >> HIS RESPONSE YESTERDAY TO ME WAS RIDICULOUS THAT HE DIDN'T EVEN KNOW THE WOMAN. WHY DO WE KEEP MAKING EXCUSES AND WHY DO WE LISTEN TO HIS OWN WORDS. ? AND LAURA JOINING ME. WE HEARD INFORMATION ABOUT ONE OF THE JURORS IN THE CASE. >> YES, LESTER, CARROLL'S LEGAL TEAM TRIED TO GET SOMEONE KICKED OFF THAT JURY AFTER LEARNING HE LISTENED TO A FAR RIGHT PODCAST. THIS ALL COMING OUT TONIGHT IN UNSEALED COURT FILINGS, BUT IT TURNS OUT THE JUDGE KEPT HIM ON THE CASE, AND AS WE KNOW, THE VERDICT WAS UNANIMOUS AGAINST MR. TRUMP. >> ALL RIGHT, LAURA, THANK YOU FOR THAT. >>> JUST ONE DAY BEFORE THE END OF A BORDER RESTRICTION KNOWN AS TITLE 42, A TOP OFFICIAL TELLS NBC NEWS AS MANY AS 65,000 MIGRANTS ARE IN NORTHERN MEXICO TONIGHT WAITING TO CROSS. TOM LLAMAS IS THERE. >> Reporter: TONIGHT LONG LINES OF MIGRANTS TURNING THEMSELVES IN AS TIME IS RUNNING OUT ON TITLE 42. BORDER OFFICIALS URGING THOSE WHO CROSSED ILLEGALLY TO LINE UP AND GET PROCESSED OR FACE THE CONSEQUENCES. >> HOW MUCH CONFUSION IS THERE OUT THERE WITH TITLE 42 BEING LIFTED AND THE NEW BIDEN POLICY BEING ENACTED? >> THEY DON'T KNOW WHO TO BELIEVE. THEY DON'T KNOW WHO TO LISTEN TO. >> Reporter: IT'S WHY SOME FAMILIES INSIST ON LIVING OUTSIDE THE SACRED HEART CHURCH IN EL PASO. THIS FAMILY IS FROM GUATEMALA TRAVELING WITH THEIR 3-MONTH-OLD. [ SPEAKING NON-ENGLISH ] >> Reporter: THEY TELL ME THEY BELIEVE BEING PROCESSED MEANS BEING DEPORTED. THEYVE RISKED TOO MUCH TO GET HERE TO BE SENT BACK. THE NUMBER OF MIGRANTS BREAKING REGARDS EVEN BEFORE TITLE 42 EXPIRES. EXPIRES. YESTERDAY MORE THAN 11,000 ILLEGAL BORDER CROSSINGS IN JUST 24 HOURS. CBP PROCESSING CENTERS OVERCAPACITY, ALL AFTER THIS MESSAGE FROM PRESIDENT BIDEN. >> IT IS GOING TO BE CHAOTIC FOR AWHILE. >> Reporter: THE CONFUSION HAS BROUGHT MANY MIGRANTS RIGHT HERE TO AN UNOFFICIAL ACCESS POINT ON THE JUAREZ/EL PASO BORDER, MEN, WOMEN AND CHILDREN ARE WAITING IN 90-DEGREE HEAT WITH NO SHADE HOPING THAT THAT THEY'LL BE ALLOWED THIS TO GET PROCESSED. HEADLINE SECURITY SECRETARY ALEJANDRO MAYORKAS TODAY WITH THIS BLUNT WARNING TO MIGRANTS. >> DO NOT LISTEN TO THE LIES OF THE SMUGGLERS. THIS IS WHAT WILL HAPPEN TO YOU. YOU WILL BE RETURNED. >> Reporter: BUT NBC NEWS NOW LEARNING THE BIDEN ADMINISTRATION IS SET TO MAKE A MAJOR CHANGE PREPARING TO DIRECT BORDER PATROL AGENTS TO RELEASE MIGRANTS INTO THE U.S. WITHOUT AN IMMIGRATION COURT DATE AND WITH NO WAY TO KEEP TABS ON THEM ACCORDING TO THREE SOURCES FAMILIAR WITH THE PLANS. MAYORKAS INSISTS IT IS A FRACTION OF THE MIGRANTS WHO ARE BEING RELEASED, AND THEY'RE VETTED. TONIGHT REPUBLICAN LAWMAKERS BLASTING PRESIDENT BIDEN. >> THE BIDEN ADMINISTRATION HAS FAILED THE AMERICAN PEOPLE. HE HAS FAILED OUR BORDER PATROL AGENTS. HE HAS FAILED OUR BORDER COMMUNITIES AND HE HAS FAILED AMERICA WITH HIS OPEN BORDER POLICY. >> TOM, YOU'RE ON THE MEXICAN SIDE OF THE BORDER. TONIGHT DO YOU GET THE SENSE OF NUMBERS OF MIGRANTS ARE STILL GROWING? >> Reporter: YEAH, THAT IS TRUE, LESTER, THAT IS WHAT WE'RE SEEING HERE. IT APPEARS TO BE THAT WAY. JUST BEHIND ME IS THE BORDER WALL. WE ARE IN JUAREZ, AN ENTRY POINT, AND THE NUMBERS ARE GROWING, BUT THE CONDITIONS ARE ALSO GROWING WORSE. LESTER, THERE IS 90-DEGREE HEAT. AS I MENTIONED EARLIER, NO SHADE AND NOW A RED FLAG WARNING SO THE WIND IS BLOWING SAND EVERYWHERE. WE'VE SEEN ENTIRE FAMILIES CAKED IN DUST AND BEHIND ME WAITING HOURS AND DAYS IN THE BLAZING NIGHT AND AT NIGHT IN THE FREEZING COLD HOPING THEY'LL BE ALLOWED IN TO BE PROCESSED. >> CATCH MORE OF TOM'S REPORTING LIVE TONIGHT ON "TOP STORY" STREAMING ON NBC NEWS NOW. >>> WITH A POTENTIAL GOVERNMENT DEFAULT LOOMING, PRESIDENT BIDEN AND CONGRESSIONAL REPUBLICANS ARE STILL LOCKED IN A STALEMATE OVER SPENDING. PETER ALEXANDER IS AT THE WHITE HOUSE. PETER, THE PRESIDENT GOING ON THE ROAD TODAY TO TRY TO MAKE HIS CASE. >> Reporter: YEAH, LESTER, THAT'S RIGHT. PRESIDENT BIDEN WAS IN NEW YORK STATE TODAY TRYING TO PRESSURE REPUBLICANS TO RAISE THE NATION'S CREDIT CARD LIMIT WITHOUT STRINGS ATTACHED, BUT WITH THE DEADLINE TO AVOID A CATASTROPHIC DEFAULT POTENTIALLY JUST THREE WEEKS AWAY, HOUSE REPUBLICANS ARE BLAMING THE PRESIDENT FOR REFUSING TO NEGOTIATE. THEY POINT TO THE PLAN THAT THEY RECENTLY PASSED THAT WOULD LIFT THE DEBT CEILING IF THE WHITE HOUSE WILL AGREE TO SPENDING CUTS. BOTH SIDES ARE SET TO MEET HERE AGAIN ON FRIDAY. IN THE END, LESTER, IT'S THE U.S. ECONOMY REALLY THAT'S AT STAKE, AND ANOTHER MAJOR HEADLINE ON THAT TONIGHT, NEW NUMBERS TODAY SHOW INFLATION CAME DOWN FOR A TENTH STRAIGHT MONTH, BUT IT REMAINS HISTORICALLY HIGH AS GAS, RENT, AND USED CAR PRICES ARE ALL RISING. LESTER. >> PETER ALEXANDER. THANK YOU. >>> THE VOTE TODAY WAS UNANIMOUS FROM THE FDA THAT THE NEW CONTRACEPTION PILL WILL HAPPEN. >> Reporter: THEY'RE TRYING TO MAKE IT AVAILABLE OVER THE COUNTER. THE FDA STILL HAS TO DECIDE ON FINAL APPROVAL BUT IT IS EXPECTED TO HEAVILY CONSIDER TODAY'S RECOMMENDATIONS. THAT WILL DETERMINE WHETHER OR NOT THE MEDICATION CALLED OPILL WILL BECOME THE FIRST BIRTH CONTROL PILL AVAILABLE WITHOUT A PRESCRIPTION IN THE U.S. SOME FDA SCIENTISTS WHO ANALYZED DATA ABOUT THE PILL RAISED CONCERNS ABOUT WOMEN WITH A HISTORY OF CERTAIN MEDICAL CONDITIONS LIKE BREAST CANCER WHO SHOULD NOT BE ON HORMONAL BIRTH CONTROL WOULD KNOW TO AVOID IT AND ALSO CONCERNS WHETHER ADOLESCENTS WOULD UNDERSTAND THE LABEL'S INSTRUCTIONS AND WHETHER IT WOULD NEED PARENTAL CON SENT. LATER THE FDA IS EXPECTED TO MAKE A FINAL DECISION. >> YAMICHE, THANK YOU. >>> A CERTAIN WARRANT FULL OF NEW DETAILS IN THE CASE OF KOURI RICHINS WHO WROTE A KID'S BOOK ABOUT GRIEF AFTER HER HUSBAND DIED. BUT TONIGHT SHE SITS IN JAIL CHARGED WITH HIS MURDER. HERE'S ERIN McLAUGHLIN. >> SO MY HUSBAND PASSED AWAY UNEXPECTEDLY LAST YEAR. >> Reporter: TONIGHT THE FAMILIES OF ERIC RICHINS ALLEGE D LI MURDERED BY HIS WIFE TURNED CHILDREN'S BOOK AUTHOR SPEAKING OUT. >> THEY FEEL THERE MAY BE JUSTICE FOR ERIC. >> Reporter: ACCORDING TO SEARCH WARRANTS, ERIC'S FAMILY TOLD INVESTIGATORS HIS WIFE KOURI HAD SOMETHING TO DO WITH HIS DEATH. WHY DID HE STAY WITH HER? >> THE BOYS. HE WAS BY ALL ACCOUNTS AN AMAZING FATHER AND WANTED TO BE WITH HIS KIDS AS MUCH AS POSSIBLE. >> Reporter: POLICE ARRESTED KOURI NEAR PARK CITY, UTAH, ALLEGING SHE POISONED HER HUSBAND WITH A MASSIVE DOSE OF FENTANYL. KOURI'S DEATH, A MONTH AFTER PROMOTING HER BOOK ON GRIEF INSPIRED BY ERIC'S DEATH CALLING HIM AN AMAZING HUSBAND AND WONDERFUL FATHER. >> SO YOU ACTUALLY WROTE THIS WITH YOUR CHILDREN. >> I DID. >> Reporter: AN AUTOPSY REVEALED ERIC HAD FIVE TIMES THE LETHAL DOSAGE OF FENTANYL IN HIS SYSTEM. KOURI TOLD RESPONDING OFFICERS SHE MADE ERIC A MOSCOW MULE TO CELEBRATE CLOSING ON A HOUSE FOR HER BUSINESS. ON TWO SEPARATE OCCASIONS KOURI PURCHASED $900 WORTH OF FENTANYL PILLS PRIOR TO ERIC'S DEATH AND INVESTIGATORS SAY ERIC RECENTLY CHANGE ED HIS WILL AND LIFE INSURANCE FROM HIS WIFE TO HIS SISTER WITHOUT HER KNOWLEDGE. THE WARRANT STATES HE DIDN'T TELL HIS WIFE BECAUSE ACCORDING TO HIS SISTER HE BELIEVES KOURI MIGHT KILL HIM FOR THE MONEY AND THAT THEY'RE FINANCIALLY SECURE. SHE HAS YET TO ENTER A ME AND HER ATTORNEYS DECLINED TO COMMENT EXPECTED IN COURT NEXT WEEK. LESTER. >> ERIN, THANK YOU. >>> IN 60 SECONDS TREATING PEANUT >>> A NEW TREATMENT SHOW SHOWING PROMISE FOR KIDS WITH SEVERE PEANUT ALLERGIES. DANA GRIFFIN TELLING US ABOUT A SKIN PATCH. >> Reporter: WHEN SARA'S DAUGHTER ZARA WAS JUST 9 MONTHS OLD, SHE DISCOVERED SHE HAD A DEADLY PEANUT ALLERGY. >> THE FIRST THING I THOUGHT WAS MY CHILD WAS GOING TO DIE. I WENT THROUGH A LOT TO HAVE HER. >> Reporter: WHILE THERE ARE OPTIONS FOR PEANUT ALLERGY SUFFERERS OVER THE AGE OF 4, UP UNTIL NOW THERE'S BEEN ALMOST NOTHING THAT COULD BE DONE TO HELP ALLERGIC TODDLERS. BUT TONIGHT A BREAKTHROUGH THERAPY RESEARCHERS SAY WILL SAVE LIVES. >> THIS IS REALLY AIMED AT PROVIDING AN ACCIDENTAL EXPOSURE BUFFER. >> Reporter: IT WORKS TO DESENSITIZE SOME OF THE YOUNGEST SUFFERERS. >> YOUR CHILD IS GAINING PROTECTION AND HAVE TO HAVE MORE PEANUT TO CAUSE A REACTION. >> Reporter: ACCORDING TO A STUDY PUBLISHED IN "THE NEW ENGLAND JOURNAL OF MEDICINE," AFTER ONE YEAR ON THE PATCH, 67% OF TODDLERS INCREASED THE AMOUNT OF PEANUTS THEY COULD SAFELY INGEST. THAT'S DOUBLED TO KIDS WHO GOT JUST THE PLACEBO. WITH FEW SERIOUS REACTIONS, DOCTORS SAY THE RESULTS ARE PROMISING BUT DO OFFER CAUTION SAYING, THIS ISN'T A CURE, BUT A LIFESAVING TOOL FOR CHILDREN WHO ARE ACCIDENTALLY EXPOSED TO PEANUTS. >> A PATCH WHEN WE'RE NOT EVEN THINKING ABOUT IT WHERE SHE DOESN'T HAVE TO THINK ABOUT IT OR FEEL ANXIETY WOULD BE AMAZING. >> Reporter: A PATCH OFFERING PARENTS PEACE OF MIND. DANA GRIFFIN, NBC NEWS. >>> WE'RE BACK IN A MOMENT WITH A TECH TITAN AND A VERY REAL BATTLE >>> GOOGLE'S TOP LEADERS TOOK TO THE STAGE TODAY TO UNVEIL AN ARRAY OF NEW TOOLS USING ARTIFICIAL INTELLIGENCE. IT WAS THE LATEST VOLLEY IN A BATTLE WITH MICROSOFT AS JAKE WARD REPORTS FOR OUR SERIES, "AI REVOLUTION." >> AS YOU MAY HAVE HEARD, AI IS HAVING A VERY BUSY YEAR. >> Reporter: IT'S GOOGLE VERSUS MICROSOFT, LOCKED IN AN AI RACE, AND TODAY GOOGLE CAME OUT SWINGING. >> FROM GMAIL AND PHOTOS TO MAPS, THESE ARE JUST A FEW EXAMPLES OF HOW AI CAN HELP YOU IN MOMENTS THAT MATTER. >> Reporter: THE TECH GIANT BUILT ON SEARCH ANNOUNCING NEW TOOLS. AI SOFTWARE TO BUILD PRESENTATIONS, ANALYZE AND ENTER DATA, AND WRITE CONTENT, THE KIND OF THINGS HUMANS ARE TYPICALLY PAID TO DO. >> WE CAN SEE THAT TRUE POTENTIAL OF AI AS A COLLABORATOR -- >> Reporter: SHE WORKS IN PART OF THE WORK SPACE PLATFORM. ARE THE TOOLS YOU ARE BUILDING GOING TO COST PEOPLE THEIR JOBS? >> THE TOOLS WE'RE BUILDING ARE HERE TO HELP PEOPLE WHETHER AT WORK OR HOME IN YOUR PERSONAL LIVES IT'S TO HELP YOU GET MORE DONE. >> Reporter: CONCERNS ARE GROWING THE SAME TECH COMPANIES THAT DOMINATED DATA COLLECTION IN THE PAST WILL USE IT TO DOMINATE THE MARKET FOR AI IN THE FUTURE. >> YOU NEED TO BE ESPECIALLY VIGILANT TO MAKE SURE INCUMBENTS ARE NOT USING THEIR EXISTING DOMINANCE IN WAYS UNLAWFUL OR ANTI-COMPETITIVE. >> Reporter: PRESIDENT BIDEN WARNED TOP TECH CEOs ABOUT THEIR DANGER AND A SENATE COMMITTEE TODAY ANNOUNCED AN OVERSIGHT HEARING FOR NEXT WEEK. SHOULD THERE BE MORE INPUT OR DEMOCRATIC INPUT INTO HOW YOU GUYS DEBUT THE PRODUCTS? >> FIRST OF ALL, I THINK THAT NONE OF THESE THINGS CAN SUPPLANT HUMAN INGENUITY OR CREATIVITY OR SPONTANEITY OR ANY OF THE THINGS THAT JUST MAKE US UNIQUE AS HUMAN BEINGS, BUT TO YOUR POINT ABOUT RESPONSIBILITY, IT'S IMPORTANT FOR SOCIETY TO PLAY A ROLE IN THIS, AND SO WE LOOK FORWARD TO ENGAGING WITH THE GOVERNMENT IN THIS. >> Reporter: THE WORLD'S BIGGEST TECH COMPANIES RELEASING PRODUCTS THAT COULD CHANGE ALL OUR LIVES IN THEIR FIGHT TO STAY ON TOP. JAKE WARD, NBC NEWS, MOUNTAIN VIEW, CALIFORNIA. >>> "INSPIRING AMERICA" TONIGHT, A YOUNG MAN WHO IS OUT TO MAKE HIS HOMETOWN A MORE BEAUTIFUL PLACE ONE SIGN AT A TIME. EMILIE IKEDA HAS A PORTRAIT OF THE ARTIST. >> Reporter: FROM THE CORNER OF THIS BROOKLYN COFFEE SHOP, MIKA'S, A 24-YEAR-OLD OLD ARTIST FEVERISHLY PUTTING PEN TO PAD REDESIGNING THE CITY STREETS IN COGNITO. >> COLOR COMBINATIONS, GOOD FONTS. >> Reporter: MAX WAS STUCK IN A CREATIVE RUT EARLIER THIS YEAR, BUT FOUND INSPIRATION IN THE COLLAGE OF SLAP DASH ADS TAPED TO WINDOWS. >> MOST YOU DON'T EVEN NOTICE, AND HONESTLY THAT'S A PRETTY TELLTALE SIGN IT COULD USE WORK. >> Reporter: FOR FUN HE STARTED DRAWING LIFE INTO THOSE SIGNS. >> IF A SIGN CAN CATCH YOUR EYE, THAT'S THE DIFFERENCE BETWEEN YOU KNOWING ABOUT SOMETHING AND YOU NOT KNOWING ABOUT SOMETHING. >> Reporter: IT STARTED WITH A FLIER FOR GAME NIGHT THEN ADS FOR REFRIGERATOR AND STOVE WORK, A HANDYMAN, EVEN A BAND. PRINTING AND POSTING HIS NEW AND IMPROVED POSTERS NEXT TO THE ORIGINALS. WHY DO IT ANONYMOUSLY INCOGNITO? >> I LIKE IMAGINING SOMEBODY COMING BACK TO THEIR SIGN, AND THERE'S ONE RIGHT TO IT WITH THE SAME INFORMATION BUT JUST PROFESSIONALLY DESIGNED, I THINK IT'S JUST, POOF. >> AN ELEMENT OF SURPRISE. >> AN ELEMENT OF SURPRISE, YI. >> Reporter: HE SHARED HIS PROCESS ON SOCIAL MEDIA AND CAPTIVATED MILLIONS WITH HIS SPIDERMAN-ESQUE EFFORT. WERE YOU SURPRISED BY THE RESPONSE TO YOUR INITIAL VIDEOS? >> ABSOLUTELY. I HAD NO IDEA IT WOULD BE AT THE SCALE THAT IT IS NOW. >> Reporter: FOR THE FIRST TIME -- >> HEY, HOW IS IT GOING? >> Reporter: -- HE PRESENTED HIS SIGNS TO A SMALL BUSINESS IN PERSON. >> I DREW THEM OUT IN YOU'RE INTERESTED. >> IT DIDN'T TAKE LONG FOR ERIC TO SWAP OUT THE SIGNS FOR HIS FAMILY'S ONE-YEAR BUSINESS, EL COMADO'S. >> HOPING PEOPLE STILL DO CARE ABOUT OTHER ONES. >> Reporter: AN ARTIST'S TOUCH INSPIRING HOPE ONE STROKE AT A TIME. EMILY IKEDA, NBC NEWS NEW YORK. >>> THAT'S "NIGHTLY NEWS" FOR THIS WEDNESDAY. THANK YOU FOR WATCHING, EVERYONE. I'M LESTER HOLT. PLEASE TAKE CARE OF YOURSELF AND EACH