JUST ABOUT THE RACE FOR THE WHITE HOUSE BACK IN HIGH GEAR THIS MORNING, BOTH VICE PRESIDENT KAMALA HARRIS AND FORMER PRESIDENT DONALD TRUMP WILL BE BACK ON THE CAMPAIGN TRAIL, TAKING THEIR MESSAGE TO KEY BATTLEGROUND STATES. CBS JARRED HILL HAS THE LATEST. >> Reporter: BRIEF MOMENT OF UNITY FOR FORMER PRESIDENT DONALD TRUMP, AND VICE PRESIDENT KAMALA HARRIS AT A NINE/11 CEREMONY NEW YORK THIS, HANDSHAKE HOURS AFTER THE GREET THAT LAUNCHED HEATED AND HISTORIC DEBATE. >> TWO VERY DIFFERENT VISIONS FOR OUR COUNTRY. >> Reporter: NOW THE PROSPECT FOR A SECOND IS UNCERTAIN. THE HARRIS TEAM IS PUSH TO GO MEET AGAIN IN OCTOBER, BUT FORMER PRESIDENT TRUMP IS STILL ON THE FENCE. >> I THINK THAT ARE WE GOING TO DO A REMATCH? I JUST DON'T KNOW. WE WILL THINK ABOUT IT. >> Reporter: IN SPRINGFIELD OHIO SOME IN THE COMMUNITY STILL THINKING ABOUT THIS BASELESS CLAIM FROM THE FORMER PRESIDENT ABOUT HAITIAN IMMIGRANTS. >> THEY'RE EATING THE DOGS, THE PEOPLE THAT CAME IN, THEY'RE EATING THE CATS. >> Reporter: THE MAYOR PUSHING BACK ON COMMENTS ABOUT MIGRANTS WHO CAME THERETO FILL OPEN JOBS. >> RUMORS LIKE THIS ARE TAKING AWAY FROM THE REAL ISSUES, SUCH AS IT THE ISSUES INVOLVING OUR HOUSING, OUR SCHOOL RESOURCES AND OUR OVERWHELMED HEALTHCARE SYSTEM. >> Reporter: NOW WITH THE CONVENTIONS AND FIRST DEBATE BEHIND THEM, HARRIS AND TRUMP ARE BACK ON THE ROAD, THE FORMER PRESIDENT IN TUSCON, ARIZONA TODAY. HARRIS WITH BACK-TO-BACK RALLIES IN NORTH CAROLINA. SOME VOTERS IN PENNSYLVANIA ARE HOPING TO HEAR MORE SUBSTANCE FROM BOTH PARTIES BEFORE NOVEMBER. >> I DIDN'T REALLY FIND ANYTHING SUBSTANTIAL IN ALL OF THAT. IT WAS JUST A LOT OF BACK AND FORTH. >> Reporter: WITH 54 DAYS UNTIL ELECTION DAY BOTH CANDIDATES ARE LOOKING TO SQUEEZE EVERY MOMENT TO GET THEIR MESSAGE OUT. JARRED HILL, CBS NEWS. >> Janelle: AND THERE WILL BE EXTRA SECURITY ON CAPITOL HILL JANUARY 6 OF NEXT YEAR WHEN MEMBERS OF CONGRESS MEET TO CERTIFY THE ELECTORAL VOTES FROM THE 2024 PRESIDENTIAL ELECTION IN NOVEMBER. IT WILL BE THE FIRST ELECTION CERTIFICATION SINCE THE US CAPITOL ATTACK IN 2021. THERE WILL BE MORE OFFICERS ON THE GROUND, BROADER SECURITY PARAMETERS, AND TECHNOLOGY TO DETECT POTENTIAL WEAPONS OR MATERIALS USED IN MASS DESTRUCTION. WEAPONS OF MASS DESTRUCTION. THE UPCOMING CERTIFICATION PROCESS HAS BEEN DESIGNATED AS