Former President Joe Biden and Sen. John Cornyn, R-Texas (Getty)
In the letter, Cornyn expressed concern that Biden’s "associates," including O’Connor, misrepresented or made "material omissions" to the public about his mental and physical fitness.
Conservatives beat the drum of Biden’s alleged senility for years but were often lambasted by the mainstream media for questioning the White House’s line on the matter.
"I fear the American people were deliberately misled about President Biden’s health. Instead of providing full transparency, which is the obligation of the commander-in-chief, important information was kept secret," Cornyn wrote.
"I do not have confidence in the former president’s aides and staff, including medical staff, or their ability to be honest and straightforward about President Biden’s cancer diagnosis."
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He noted how President Donald Trump assented to calls that he take a cognitive test to demonstrate fitness for office while contrasting that with Biden's refusal, which famously resulted in a tense exchange with a CBS News correspondent when the then-president asked, "Why the hell should I take a test?" and asked if the Black news anchor was "a junkie" who might want to undergo a test for cocaine in his system.
Cornyn contrasted White House claims that Biden was "fit for duty" with revelations, including those in a CNN anchor’s new book, that he was only capable of working "four to six good hours" per day.
"These positions are in direct conflict," Cornyn will tell Bondi, adding that despite having the world’s best medical care at his fingertips, Americans have been asked to "accept coincidence after coincidence" involving his health.
He also cited the 25th Amendment, which he noted provides Americans an insurance policy that their government can continue to function if the infirmity or death of a president should occur.
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"These actions potentially impacted the trust the American people have in their government and weakened us on the world stage."
He cited a report from earlier this week that White House staff had secretly discussed the possibility that Biden would be confined to a wheelchair while still putting on a brave face to the public.
Former President Franklin Roosevelt, stricken by polio, conducted the nation’s business from a wheelchair.
"I encourage the Department to conduct a full investigation and ensure that no federal laws were violated during the previous administration," Cornyn concluded.
Fox News Digital reached out to a Biden representative for comment.
Charles Creitz is a reporter for Fox News Digital.
He joined Fox News in 2013 as a writer and production assistant.
Charles covers media, politics and culture for Fox News Digital.
Charles is a Pennsylvania native and graduated from Temple University with a B.A. in Broadcast Journalism. Story tips can be sent to charles.creitz@fox.com.
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