NEWS, ANALYSIS, AND NEWSMAKER INTERVIEWS. >>> A WOMAN YOU MIGHT KNOW TOO WELL DECIDED TO SPEAK NOW. SHORTLY AFTER THE DEBATE ENDED, TAYLOR SWIFT, ANNOUNCED HER SUPPORT FOR THE DEMOCRATIC TICKET. IT CAUGHT THE HARRIS CAMPAIGN OFF GUARD. SWIFT POSTED ON INSTAGRAM. I AM VOTING FOR HARRIS BECAUSE SHE VOTES FOR THE RIGHTS AND CAUSES THAT I BELIEVE IN. I BELIEVE WE CAN ACCOMPLISH SO MUCH MORE IF WE ARE LED BY CALM AND NOT CHAOS. THE 34-YEAR-OLD SINGER SIGNED HER POST, CHILDLESS CAT LADY. THAT WAS IN REFERENCE TO JD VANCE , ABOUT WOMEN WHO DO NOT HAVE CHILDREN. DONALD TRUMP TRIED TO SHAKE IT OFF THIS MORNING SAYING HE IS NOT A FAN OF HERS AND WILL PAY A PRICE IN THE MARKETPLACE. HARRIS IS LEADING 50% FROM 34% AMONG GEN Z VOTERS. JOINING ME NOW IS MELISSA, A NONPARTISAN ORGANIZATION THAT RESEARCHES CULTURE AND POLITICS. SHE HAS A NEW BOOK, THE POLITICS OF GEN Z. THANK YOU SO MUCH FOR BEING HERE. SO MANY PEOPLE ARE BUZZING ABOUT THIS ENDORSEMENT. USUALLY WE DO NOT SPEND TIME TALKING ABOUT AN ENDORSEMENT. TAYLOR SWIFT HAS TENS OF MILLIONS OF FOLLOWERS. WE HAVE SEEN HER CONCERTS IMPACT THE U.S. ECONOMY. HOW AND TO WHAT EXTENT CUSHY IMPACT THE SELECTION? DO YOU THINK IT WAS WAY YOUNGER VOTERS? >> WHEN THE MOST FAMOUS CHILDLESS CAT LADY ENDORSES YOU, THAT WOULD BE A GOOD THING FOR ANY CAMPAIGN. WITH TAYLOR SWIFT, SHE PROBABLY IS GOING TO HELP THE CAUSE FOR THE HARRIS CAMPAIGN. SHE HAS SHOWN IN THE PAST THE ABILITY TO GET PEOPLE TO VOTE. WHEN YOU LOOK BACK AT 2020 SHE DID NOT ENDORSE JOE BIDEN. A LOT OF THINGS CHANGED THE LAST FOUR YEARS. WE HAVE MORE GEN Z VOTERS. OF THE 8 MILLION MORE VOTERS WILL BE ELIGIBLE TO VOTE. SHE REALLY COULD HAVE AN IMPACT ON THOSE VOTERS. >> TO FOLLOW UP, HOW MUCH OF AN IMPACT -- TO WHAT EXTENT IS IT THOUGHT THAT SHE IMPACTED JOE BIDEN'S CAMPAIGN IN 2020? >> HE DID WELL WITH YOUNG VOTERS. I WILL SAY THAT LAST YEAR SHE ENCOURAGED FOLLOWERS TO REGISTER AND THERE WAS A SPOKE IN VOTER REGISTRATION. 30,000 OF HER FANS REGISTERED IN 2023. NOW IN 2024 WITH A HIGHLY PUBLICIZED ELECTION THAT LOTS OF YOUNG PEOPLE ARE TALKING ABOUT, IT COULD REALLY HELP THE HARRIS CAMPAIGN. >> LET'S TALK ABOUT CELEBRITY ENDORSEMENTS OF BROADLY. HISTORICALLY WHAT HAS THE IMPACT BEEN ON CAMPAIGNS? DO THEY MAKE A BIG DIFFERENCE? >> DATA SHOWS MOST AMERICANS DO NOT RELY ON CELEBRITY ENDORSEMENTS. THERE WAS A POLL EARLIER THIS YEAR THAT USA TODAY PUT OUT, THEY ASKED ABOUT THE ROLE OF INFLUENCERS INCLUDING TAYLOR SWIFT. 1 IN 10 WOMEN'S UNDER THE AGE OF 35 SET HER ENDORSEMENT WOULD INFLUENCE THEM. IS NOT THE MAJORITY OF VOTERS BUT AN ELECTION WHERE IT WILL MATTER, IT HELPS, IT DOESN'T HURT. >>> LET'S TALK ABOUT THE GENDER GAP. STILL NOT AS BIG AS IN 2020. THE CHALLENGE FOR THE V HARRIS, IF SHE WANTS TO WIN, IS TO TRY TO DRAW MORE VOTES. DOES THE NATIONAL GENDER GAP ECHO WHAT WE SEE WITH THE GEN Z GAP? >> IF YOU LOOK AT THE LAST ELECTION IN 2022, 72% OF GEN Z WOMEN VOTED FOR DEMOCRATS. 54% OF THE MEN. PULLING IS SHOWING THAT THEY WILL TURN UP HEAVILY IN FAVOR OF HARRIS. WITH THE MEN, IT'S IT -- MAKES. YOUNGER WHITE MEN PROBABLY MORE POISED TO VOTE FOR DONALD TRUMP AT THIS POINT. >> WHAT WE ARE TALKING ABOUT TODAY IS THE DEBATE. HOW DOES GEN Z WATCH? THEY TUNING IN? >> THERE WATCHING ON STREAMING SERVICES. I HAVE THEM AND MY FAMILY AND I TALKED TO THEM AND THEY WERE LEFT WITH THE IMPRESSION THAT DONALD TRUMP WAS UNHINGED. HE WAS NOT ANSWERING QUESTIONS DIRECTLY. MANY OF THEM ARE GETTING THEIR POLITICS INFO ONLINE