>>> IT'S BEING CALLED AMERICA'S FIRST NAP ELECTION, TO QUOTE POLITICO. AT A MOMENT WHEN PRESIDENTIAL CAMPAIGNS TRADITIONALLY FORM LATE THEIR CLOSING ARGUMENTS, HARRIS IS STILL MAKING HER INTRODUCTIONS BUT WITH TWO MONTHS TO GO AND TRADITIONALLY TIME VOTERS REALLY START TUNING IN, THE VICE PRESIDENT FACES A BIG CHALLENGE. STEVE KORNACKI IS AT THE BIG BOARD DIGGING INTO THE NUMBERS. OKAY, POST LABOR DAY, THE BEGINNING OF THE END. WE TRADITIONALLY LOOK AT IT IN POLITICS. WHERE DO THINGS STAND? >> SO NATIONALLY, WHAT YOU'RE SEEING HERE, THIS IS THE AVERAGE OF THE POLLS. HARRIS WITH A THREE-POINT ADVANTAGE OVER TRUMP. THE DEMOCRATS ARE HAPPY TO BE AHEAD AND THAT THIS IS AN IMPROVEMENT OF THEM FROM WHERE JOE BIDEN WAS. HE WAS BASICALLY TRAILING TRUMP IN THE POLLING ALL YEAR. FROM THE REPUBLICAN STANDPOINT, THEY CAN TAKE SOLACE FROM THE FACT THAT DONALD TRUMP IS NO STRANGER TO BEING IN THE POSITION AT LABOR DAY. IN FACT, THIS THREE-POINT GAB HE HAS NOW, THAT'S BETTER FOR HIM THAN IT WAS IN 2016 WHEN HE RAN AGAINST HILLARY CLINTON. HE TRAILED BY FIVE AT THIS POINT. TRUMP OF COURSE WENT ON TO WIN THAT ELECTION. 2020, TRUMP TRAILED BIDEN BY EVEN MORE. ALMOST DOUBLE DIGITS AROUND LABOR DAY. HE DIDN'T WIN, BUT MADE IT CLOSE IN THE ELECTORAL COLLEGE AND THAT REALLY BECOMES THE QUESTION. THE ROAD TO 270. WE'RE GOING TO BE GIVING THIS A LOT OF USE IN THE NEXT 63 DAYS. THESE ARE THE CORE BATTLEGROUND STATES. SO FROM HARRIS' PERSPECTIVE, WHAT WOULD BE THE MOST EFFICIENT WAY, THE SIMPLEST WAY, THE CLEANEST WAY FOR HER TO GET TO 270. WHEN YOU LOOK AT THE STATE POLLING, THE FIRST THING YOU COULD SAY IS ALL OF IT IS CLOSE. A LOT OF IT VERY, VERY CLOSE BUT THE DEMOCRATS ARE DOING A LITTLE BIT BETTER IN CALLING THE GREAT LAKE STATES OF WISCONSIN, MICHIGAN, AND PENNSYLVANIA. SO IF HARRIS WERE ABLE TO JUST CARRY THESE THREE STATES, ALL WENT FOR BIDEN IN 2020, AND IF YOU TURN THEM BLUE NOW, IT WOULD BRING HARRIS TO EXACTLY 270 ELECTORAL VOTES. NOW, IF SHE STARTS LOSING THESE STATES, SHE NEEDS TO COMPENSATE FOR IT IN SOME OF THESE SUN BELT STATES AND PARTICULARLY ONE OF THESE THREE THE TRUMP CAMPAIGN IS INVESTING THE HEAVIEST IN IS PENNSYLVANIA. IF TRUMP WERE TO GET PENNSYLVANIA, TWO THINGS WOULD HAPPEN. FROM HARRIS' STANDPOINT, PENNSYLVANIA IS THE LARGEST OF THE SWING STATES. IT WOULD TAKE TWO STATES FROM THE SUN BELT FOR HARRIS TO MAKE UP FOR THE LOSS OF ONE PENNSYLVANIA BUT ALSO IF TRUMP WERE TO GET PENNSYLVANIA, THAT WOULD OPEN UP FOR HIM WHAT IS HIS SIMPLEST, CLEANEST PATH TO 270. GET PENNSYLVANIA, HOLD ON TO NORTH CAROLINA. ONLY ONE OF THE CORE BATTLEGROUND STATES TRUMP CARRIED IN 2020. SO IF HE HANGS ON TO THAT. THEN GEORGIA. GEORGIA WENT FOR BIDEN BY JUST UNDER 12,000 VOTES. VERY, VERY NARROW IN 2020. HAD GONE F