He is off his jacking rocker.
Dear Congress, please impeach ASAP.
Dear VP and Cabinet, please invoke the 25th ASAP.
There should not be any other response to the "President of the United States" is behaving like a B-movie villain dictator.
Not really on topic, but would his own party really impeach him?
As I understand, the Senate does the impeaching, but I don't really know the process that well.
Impeachment is what the House does. The Senate does the process of actually removing him from office.
To add details: the House impeaches by majority vote, and the Senate then votes on removal, which requires 2/3 in favor.
So if it passes the House but not the Senate... nothing happens?
Yes. That’s what happened to Bill Clinton and Andrew Johnson, and they completed their terms.