 A new poll released on the eve of the first presidential debate shows former President Trump has taken the lead over President Biden nationally. Mark Mayfield reports. With all eyes on the first debate, a new Quinnipiac poll says 73% of voters will likely watch the debate and 16% say each candidate's performance in that debate could lead them to changing their vote. The poll also finds that Trump now leads President Biden 49 to 45% hand-to-hand after Trump trailed by 1% back on May the 22nd.