Jill BidenJill BidenBidens visit WWII memorial to mark 80th anniversary of Pearl Harbor attackChina warns of ‘firm countermeasures’ if US stages diplomatic boycott of Beijing OlympicsBiden returns restores tradition, returning to Kennedy Center HonorsMORE is dismissing any concerns about President BidenJoe BidenPharma lobby eyes parliamentarian Demand for US workers reaches historic highBiden to award Medal of Honor to three soldiers who fought in Iraq, Afghanistan: reportMORE’s mental fitness, calling them “ridiculous.”

“I think that’s ridiculous,” Biden says in an interview for this week’s “CBS Sunday Morning.” Portions of the sit-down at Camp David with Rita Braver were released Thursday.

Biden shook her head as Braver asked about some recent polling that the CBS News journalist described as showing “quite a few Americans have some questions about the president’s current mental fitness.”

A Politico/Morning Consult survey conducted last month found that only 46 percent of respondents agree that 79-year-old Biden “is mentally fit,” while 48 percent disagreed.

Biden also opened up about her role as first lady being more difficult than she predicted before she entered the East Wing.

“It’s a little harder than I imagined,” Biden said in a preview clip, when asked if she was prepared for what the role would be like.

Biden chalked up the challenge to the non-stop nature of working in the White House.

“It’s not like a job that you do,” Biden, a professor at Northern Virginia Community College, told Braver. “It’s a lifestyle that you live.”

First Lady Jill Biden opens up this Sunday about her life, her efforts to support her husband and looks back at their first year in office, in a rare interview at Camp David, the Presidential retreat in rural Maryland pic.twitter.com/lC7gpUSqjZ

CBS Sunday Morning (@CBSSunday) December 9, 2021

Although she spent eight years as second lady when President Biden was vice president, Biden expressed surprise at not being able to clock in and out of work like in many traditional careers.

“It’s not something that you leave at 5 o’clock or at 3 o’clock,” Biden, 70, said.

“It’s 24 hours a day.”

Biden also weighed in on Democrats dropping a tuition-free community college proposal from the president’s sweeping social spending plan, saying it wasn’t hard to hear the news. “No, I understand compromise,” she said.

“And I knew this was not the right moment for it. But that doesnt mean it might not get passed somewhere down the future.