Twenty-five House Democrats have signed on to a bill seeking to remove President Trump from office under the 25th Amendment to the U.S. Constitution.
The bill calls for the creation of a congressional "oversight" commission that could declare Trump incapacitated and seek his removal.
The bill's primary sponsor, Rep. Jamie Raskin (D-MD), urged his colleagues by email to get behind the measure, saying it is of "enduring importance to the security of the nation."
"In case of emergency, break glass," Raskin told Yahoo News. "If you look at the record of things that have happened since January, it is truly a bizarre litany of events and outbursts."
Trump has generated controversy in recent days with his attacks on Joe Scarborough and Mika Brzezinski, hosts of MSNBC's "Morning Joe." The attacks begain on Thursday.
...to Mar-a-Lago 3 nights in a row around New Year's Eve, and insisted on joining me. She was bleeding badly from a face-lift. I said no!— Donald J. Trump (@realDonaldTrump) June 29, 2017
Trump's tweets weren't well-received by lawmakers on either side of the aisle.
"I don't see that as an appropriate comment," House Speaker Paul Ryan (R-WI) said of Trump's assertion that Brzezinski was "bleeding badly from a face-lift."
"I think it's a blatantly sexist [tweet]. I don't even know that there's any question about that," said House Minority Leader Nancy Pelosi (D-CA).
Undaunted, Trump issued this tweet on Saturday.
Crazy Joe Scarborough and dumb as a rock Mika are not bad people, but their low rated show is dominated by their NBC bosses. Too bad!— Donald J. Trump (@realDonaldTrump) July 1, 2017
Raskin was asked if Trump's "Morning Joe" tweets strengthened the case for invoking the 25th Amendment.
"I assume every human being is allowed one or two errant and seemingly deranged tweets. The question is whether you have a sustained pattern of behavior that indicates something is seriously wrong," he said.
The 25th Amendment was adopted in 1967 to address potential incidents in which the president becomes incapacitated and unable to perform his or her duties. It came about four years after the assassination of President Kennedy and 12 years after President Eisenhower suffered a heart attack.
Pelosi and other top Democrats have sought to rein in talk of impeaching Trump or removing him from office by other means, but Rep. Al Green (D-TX) called for Trump's impeachment on the House floor and Rep. Brad Sherman (D-CA) has drafted and circulated articles of impeachment.