President Donald Trump‘s handling of former President Joe Biden‘s recent prostate cancer diagnosis has vacillated between expressing sympathy over the seriousness of the illness and calling for transparency surrounding his predecessor’s tenure.

Former President Joe Biden was diagnosed with prostate cancer last week, his office said in a statement on Sunday. The news came after it was revealed that a "small nodule" was detected during a "routine physical exam," a spokesperson for the former president told ABC News on May 13.

Oncologist and former Biden advisor Dr. Ezekiel Emanuel said on MSNBC that the former president most likely had prostate cancer years before the news dropped.

In a rare sympathetic message on Tuesday, Trump defended his predecessor and suggested that it was Biden’s staffers—not the former president—who wanted “open borders.” He claimed that Biden’s staffers used the “autopen” to exploit the presidency.

WASHINGTON -- A representative for former President Joe Biden said he last took a prostate-specific antigen blood test, commonly used to screen for prostate cancer, in 2014.

Joe Biden and Jill Biden have been at each other's sides through celebrations and challenges, such as his recent prostate cancer diagnosis.

President Donald Trump's return to the White House is documented in the docuseries, 'The Art of the Surge: The Donald Trump Comeback,' now streaming on Fox Nation.

Trump’s most ardent loyalists claim Kevin O’Connor concealed Joe Biden’s cancer diagnosis—and they want an investigation.