Scoop: GOP senator investigating White House handling of Biden's health

• Johnson (R-Wisc.), who is chair of the Homeland Security and Governmental Affairs' select subcommittee on investigations, told Axios he plans to send out letters seeking information about Biden's health during his presidency as soon as Wednesday evening.
• He plans to request information from a "couple dozen people" who had or should have "direct contact" with Biden.
• "We have to. I mean, who was running the government," Johnson told Axios.

The other side: "Prior to Friday, President Biden had never been diagnosed with prostate cancer," a Biden spokesperson told Axios on Tuesday.

• Biden was last screened for prostate cancer in 2014, when he was 70 or 71. Standard guidelines don't recommend screenings past that age, Axios reported Tuesday.

Zoom out: The House Committee on Oversight and Government Reform has already announced an investigation into Biden's use of an "auto pen" to sign documents.