Former President Joe Biden’s announcement that he has an aggressive form of prostate cancer was met with cynicism surrounding the announcement’s timing by leading figures in the MAGA movement.

Donald Trump Jr., the eldest son of President Donald Trump, suggested Biden engaged in a “coverup” of his diagnosis while mocking the former president’s wife.

“What I want to know is how did Dr. Jill Biden miss stage five metastatic cancer or is this yet another coverup???” Trump Jr. tweeted Sunday after the announcement from Biden’s personal office.

“Last week, President Joe Biden was seen for a new finding of a prostate nodule after experiencing increasing urinary symptoms. On Friday, he was diagnosed with prostate cancer, characterized by a Gleason score of 9 (Grade Group 5) with metastasis to the bone,” the statement from Biden’s office said.

“While this represents a more aggressive form of the disease, the cancer appears to be hormone-sensitive which allows for effective management,” it went on to say.

Vice President JD Vance said the announcement should spark a conversation “about whether the former president was capable of doing the job.”

“First of all, of course, we wish the best for the former president’s health … whether the right time to have this conversation is now or at some point in the future, we really do need to be honest about whether the former president was capable of doing the job” Vance said.

“You can separate the desire for him to have the right health outcome with the recognition that whether it was doctors or whether it was staffers around the former president, I don’t think he was able to do a good job for the American people,” he continued.

“That’s not politics, that’s not because I disagree with him on policy. That’s because I don’t think he was in good enough health,” Vance went on to say.

“In some ways, I blame him less than I blame the people around him. And why did the American people have a better sense of his health picture? Why didn’t the American people have more accurate information about what he was actually dealing with? This is serious stuff.”

Rep. Warren Davidson, R-Ohio, shared Trump Jr.’s sentiment on the announcement’s timing.

“I feel terrible for anybody that would go through that, even somebody who I really don’t like much as Joe Biden,” Davidson said.

“But look, I don’t just believe that they found out Friday because they’re not credible on anything they’ve done,” the congressman continued.

Davidson suggested a link between Friday’s release of audio of Biden’s interview with special counsel Robert Hur and the former president’s Sunday statement on his diagnosis.

“The whole thing was a big coverup,” Davidson said of the Hur interview, “and I suspect this cancer diagnosis is part of that whole scheme.”

Axios reported that the recordings “shed light on why his White House refused to release the recordings last year, as questions mounted about his mental acuity.”