Many more folks watched the debate than heard Biden in NC. If either left an impression on most voters or the undecided it will be the debate. I highly doubt many saw Biden in NC. Here’s a poll taken after the debate. Many interesting questions were asked. You can scroll through it if anyone likes. Myself, I always pay close attention to independents, the non-affiliated, less to non-partisan group of voters. I know how republicans and democrats will vote.

https://www.surveyusa.com/client/PollReport.aspx?g=92c0a94c-3531-4584-a468-f8145c8aa811

It's high past time that we start electing Americans to congress and the presidency who put America first instead of their political party. For way too long we have been electing Republicans and Democrats who happen to be Americans instead of Americans who happen to be Republicans and Democrats.