Donald Trump’s blow-up earlier this week at a planned White House meeting with congressional Democrats has once again opened the question of Trump’s ongoing mental stability.

Trump Wednesday abruptly blew up and walked out of a meeting intended to advance a $2 trillion infrastructure plan. A short while later, Trump angrily announced that he would not move forward on the infrastructure program until congressional Democrats end their oversight efforts on him and his administration.

“Well, I have felt for some time that the mental stability of the president of the United States is in question. And I suggested invoking the 25th Amendment way back when, when he was calling the leader of North Korea ‘Rocketman,’ and trying to gin up a war with North Korea,” said Rep. Jackie Speier (D-Calif.), referring to an amendment which can be used to declare a president incapacitated and not able to carry out the job. “And I think that what we have here is someone who is obsessed. He is obsessive in his behavior in terms of talking about the investigation, about impeachment. He is also very compulsive. So there have been plenty of psychiatrists and psychologists who have observed him now for over two and a half years that have made the diagnosis from afar that he is a malignant narcissist.”

It’s not only Democrats who are voicing concern.

“The president during the campaign, we’ve said it, people closest to him told us that they feared that he was in mental decline. People very close to him told us that that he feared he was predementia, that he had changed,” said Joe Scarborough, a former Republican member of Congress and currently host of MSNBC’s Morning Joe. “You watch Donald Trump in the late 1980s, even in the 90s, you watch him now, he is completely changed.”

This isn’t the first time Trump has faced these kinds of questions. He faced them often early in his presidency until he declared himself a “very stable genius.”