Despite the Trump campaign and the president himself repeatedly questioning the mental acuity of Biden, a larger percentage of U.S. adults say they believe the Democratic presidential candidate has the traits best suited for the job. A slight majority of likely voters—51 percent—told Fox News they believe Biden, 77, has the “mental soundness” to be president, compared to 47 percent who say the same about Trump, 74.

The president has repeatedly boasted about acing a cognitive test, and last his week campaign released an ad which showed Biden struggling to form sentences in public remarks.