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Jill Biden defends husband's cognitive ability from Trump attacks: 'It's ridiculous'

Jill BidenJill BidenOvernight Health Care: Biden slams Texas, Mississippi for lifting coronavirus restrictions: 'Neanderthal thinking' | Senate panel splits along party lines on Becerra |Over 200K sign up for ACA plans during Biden special enrollment period Education secretary: Vaccinating teachers 'my top priority' The Hill's Morning Report - Presented by Facebook - Senate Dems face unity test; Tanden nomination falls MORE, the wife of presumptive Democratic presidential nominee Joe BidenJoe BidenThe West needs a more collaborative approach to Taiwan Abbott's medical advisers were not all consulted before he lifted Texas mask mandate House approves George Floyd Justice in Policing Act MORE, defended her husband’s cognitive abilities on Wednesday from attacks by the Trump campaign that she called “ridiculous.”

“It’s ridiculous,” she said on NBC’s “Today” Tuesday. “Joe is on the phone every single minute of the day talking to governors, Nancy PelosiNancy PelosiOn The Money: Democrats deals to bolster support for relief bill | Biden tries to keep Democrats together | Retailers fear a return of the mask wars Here's who Biden is now considering for budget chief Biden urges Democrats to advocate for rescue package MORE, he’s on Zoom, he’s doing fundraisers, doing briefings. He doesn’t stop from 9 in the morning until 11 at night.”

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The Trump campaign has repeatedly sought to make Biden's mental acuity an issue and released an ad on Tuesday titled “What happened to Biden?”

The ad attacked the 77-year-old former vice president by showing video of him speaking eloquently during the Obama administration contrasted by footage of him stumbling on his words during the campaign.

Trump turned 74 in June and has also faced questions about his age and mental fitness.

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During the primary campaign, Biden was also hit by at least one opponent, Julian CastroJulian CastroMore than 200 Obama officials sign letter supporting Biden's stimulus plan OVERNIGHT ENERGY: McEachin signals interest in Biden administration environment role | Haaland, eyed for Interior, stresses need for Native American representation | Haaland backers ask Udall to step aside in bid for Interior post Julian Castro announces relaunch of 'Adios Trump!' shirts to raise money for young immigrants MORE, over his memory. During a tense exchange at a September 2019 debate, Castro asked Biden if he'd forgotten what he said two minutes ago, drawing an audible reaction from the crowd.  

A July Monmouth University poll indicated more Americans, 52 percent, believe Biden is mentally and physically up to the job of president, compared to 45 percent who said the same for Trump. 

The same poll found 72 percent of Republicans said they are very confident about Trump’s stamina, compared to 47 percent of Democrats who said the same about Biden. Trump supporters are generally more enthusiastic in polls than Biden supporters.