 The survey finds widespread discontent with both candidates, nearly half voters. 47% said they would replace both men on the ballot if they could. 53% said they aren't enthusiastic about anyone running for president. But, but, the enthusiasm for Joe Biden is non-existent. Non-existent. 76% of Democrats say Joe Biden is too old to run this year. Of Democrats, two-thirds of Democrats would replace Biden on the ballot with another nominee.