CBS News: For months before the first debate , the nation's voters repeatedly expressed doubts over whether President Biden had the cognitive health enough to serve. Today, those doubts have grown even more: now at nearly three-quarters of the electorate, and now including many within his own party. And today, after the debate with former President Trump , an increased number of voters, including many Democrats, don't think Mr. Biden should be running for president at all. Nearly half his party doesn't think he should now be the nominee. ... Given that, today nearly three in four voters also don't think Mr. Biden should be running for president in the first place. That's a higher-percentage sentiment than in February, when almost two-thirds said he should not run. ... I suspect the Democrats don't think they have a better candidate at this time, which actually tells you something about the decline of the party. See also: The Only Way to Read This Biden Fundra