OnPolitics: Biden's supporters shaken after debate performance, exclusive poll finds

Hey OnPolitics readers! President Joe Biden's core support has been shaken by his stumbling performance in last week's debate, an exclusive USA TODAY/Suffolk University Poll finds, fueling a furor over whether he should continue his candidacy.

More than four in ten Democrats, 41%, said the Democratic Party should replace Biden as its presidential nominee. That included 37% of those who say they plan to vote for him, USA TODAY's Susan Page reported.

✅ Who won the debate? By nearly 5 to 1, 50% to 11%, those surveyed said former President Donald Trump won over Biden. Only 28% of Biden supporters said their candidate won, compared with 86% of Trump's supporters who said their candidate won. Trump's base also remains solid despite criticism of the false claims he made during the debate. Only 14% of Republicans and 12% of Trump's supporters said the GOP should replace him on its ticket.

Prep for the polls: See who is running for president and compare where they stand on key issues in our Voter Guide

🔥Biden's age still key concern: When asked an open-ended question about why they thought one candidate or the other had prevailed, most cited either the strength or the weakness of their mental acuity. Those with concerns about Biden used words like "confused" and "incoherent." They also overwhelmingly said Trump won.

🥊 Voters still want a different candidate: Most Americans polled said they would like to have different choices on the ballot for both parties. Overall, those surveyed by 54% to 37% say Biden should be replaced as the nominee. Nearly as many said that of Trump, by 51% to 46%.

Read more: Joe Biden's core Democratic support takes big hit after debate, exclusive poll shows

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This article originally appeared on USA TODAY: Biden's core support shaken after debate, exclusive poll finds