Republican Rep. James Comer is requesting former White House physician, Kevin O'Connor, appear for a transcribed interview as part of a probe into Biden's mental fitness.

Experts say PSA tests are typically not recommended for men older than 70.

A spokesperson for the former president addressed Joe Biden's history with PSA tests and revealed he received his last blood test in 2014.

A spokesperson for the former president addressed Joe Biden's history with PSA tests and revealed he received his last blood test in 2014.

In a copy of “Original Sin” obtained by ABC News, journalists Jake Tapper and Alex Thompson allege Joe Biden hid info about his son Beau's cancer diagnosis.

Biden, even after he has exited political life and as he faces a serious cancer diagnosis, remains a factor in the conversation about his party's political future.

ABC News’ Averi Harper reports on the legacy of former President Joe Biden, as well as political reaction to his cancer diagnosis.

Former President Joe Biden's cancer diagnosis is drawing new questions about his health while in the White House.

Former President Joe Biden has been diagnosed with an aggressive form of prostate cancer that has metastasized to the bone, his office announced this week.

ABC News’ Linsey Davis speaks with Sloan Kettering’s prostate cancer section head, Dr. Michael J. Morris, on what former President Biden’s cancer diagnosis means and what treatment may look like.

Biden, 82, left office as the oldest serving president in U.S. history.

After revealing he's been diagnosed with prostate cancer, former Pres. Biden shared a new photo with former first lady Jill Biden, writing, "Cancer touches us all."

President Trump called former President Joe Biden's cancer diagnosis "very sad" before speculating about the timing of Biden's public disclosure of the disease.

ABC News medical correspondent Dr. Darien Sutton shares the possible timeline of former President Joe Biden’s diagnosis.

Experts told ABC News it’s not uncommon for older prostate cancer patients, like former President Joe Biden, to receive a diagnosis when the disease is advanced.

Former President Joe Biden's office announced on Sunday that he was diagnosed with an "aggressive" form of prostate cancer. Here's what to know about the disease.

ABC News' Dr. Darien Sutton breaks down what to know about former President Joe Biden’s “aggressive” cancer diagnosis.

Former President Joe Biden had previously led the federal government's effort to "end cancer as we know it" through a cancer "moonshot" initiative.

The book, “Original Sin,” outlines new claims about former President Joe Biden’s physical and mental health and follows Biden's announcement of a prostate cancer diagnosis.

Arif Kamal, chief patient officer at the American Cancer Society, discusses former President Joe Biden's prostate cancer diagnosis.

Dr. Khurshid Guru, a urological surgeon at Roswell Park Comprehensive Cancer Center, shares what men should ask their doctors about the disease.

A newly released audio clip appears to show former President Joe Biden struggling to recall the dates of key events in his life, including the death of his son Beau.

Former President Joe Biden has been diagnosed with an "aggressive" form of prostate cancer that has been characterized by a "Gleason score of 9" and includes metastasis to the bone, his office said.

Amid news of former President Joe Biden’s prostate cancer diagnosis, ABC News Chief Medical Correspondent Dr. Tara Narula breaks down what his condition means and what possible treatments can be done.

Former President Joe Biden's office shared his prostate cancer diagnosis Sunday. He was diagnosed May 16.

Former President Joe Biden has been diagnosed with prostate cancer, according to a statement from his office released Sunday afternoon.

A statement from his office announced on Sunday that Biden has been diagnosed with 'aggressive' prostate cancer.

ABC News has broken down what former President Biden's prostate cancer diagnosis means and what possible treatments can be done.

ABC News’ Jonathan Karl interviews Rep. Ro Khanna, D-Calif., on “This Week.”

Former President Joe Biden's office said Sunday he recently began experiencing symptoms and was diagnosed with an aggressive form of prostate cancer on May 16.

Dr. Stephanie Widmer, an emergency medical physician, joined ABC News Live to discuss potential diagnoses and treatment for former President Joe Biden, who has been diagnosed with prostate cancer.

Democratic Rep. Ro Khanna said there wasn't a cover-up of former President Biden's mental fitness ahead of 2024 election, but Democrats have to admit their mistakes.

Joe Biden’s time in public office is now behind him, but his age and mental acuity have become a litmus test for the next leaders in his party

The book, “Original Sin,” outlines new claims about former President Joe Biden’s physical and mental health.

Martin also suggested that officials whom he's unable to charge should be publicly shamed, despite DOJ policy.

A small nodule was found in former President Joe Biden’s prostate after “a routine physical exam," a spokesperson confirmed to ABC News on Tuesday.

A small nodule was found in the prostate of former President Joe Biden during a routine physical exam

Some Democrats say there is "a place for Joe Biden at the table," but others say he is best served out of the spotlight.

The Trump administration is considering releasing the audio of former President Biden's 2023 interview with special counsel Robert Hur, sources tell ABC News.

Former President Joe Biden and first lady Jill Biden appeared on ABC's "The View" on Thursday for their first joint interview since leaving the White House.

Former President Joe Biden and first lady Jill Biden joined ABC's "The View" on Thursday for their first joint interview since leaving the White House.

Former President Joe Biden, on ABC's "The View" on Thursday, said President Donald Trump has had the "worst 100 days" of any president.

During his remarks on “Investing in America,” President Donald Trump continued to blame former President Joe Biden for the market and economy shrinking.

President Donald Trump again sought to blame former President Joe Biden for the Commerce Department's report showing the U.S. economy contracting in the first quarter of 2025.

The policy restricted prosecutors from seizing reporters’ records in criminal investigations, according to an internal memo obtained by ABC News.

Former President Joe Biden accused the Trump administration of doing “so much damage and so much destruction” in less than 100 days, including “taking a hatchet” to the Social Security Administration.

Former President Joe Biden's speech came as Democratic congressional leaders billed Tuesday as a "Day of Action" focused on Social Security.

Former President Joe Biden said Tuesday that the amount of damage the Trump administration has done to Social Security is "breathtaking."

Former President Joe Biden will deliver one of his first public speeches since leaving office 85 days ago, expected to speak about safeguarding Social Security.

The DOJ said it is reviewing the criminal case brought against Alexander Smirnov and is moving for a judge to release him from prison immediately.