On Friday's broadcast of CNBC's "Squawk Box," Biden Campaign Co-Chair Sen. Chris Coons (D-DE) acknowledged he got "lots" of panicked reactions from "long-time friends and supporters" about President Joe Biden's performance in last night's debate, but "I've also had that happen several times over several episodes and events in politics. This is not new. This is what Democrats do when there's an evening that's a little off, where there's a slow start, where he's not his strongest self."