None of this should be a complete surprise. Republican House Speakership usually results in the Speaker being eaten alive by their own caucus or ethics/criminal violations.
Newt Gingrich: Ethics violations, resigned Speakership, resigned from House.
Dennis Hastert: resigned from House, arrested for bank fraud and felony false statements, pled to bank fraud and molesting minors.
John Boehner: resigned from Speakership, resigned from House.
Paul Ryan: declined to run for House in 2018.
Next up:
*edited to be fixed