You should listen to this interview:
https://static.theintercept.com/amp/deconstructed-markey-morse.html
The Sunrise Movement is portraying Mayor Morse as a victim and is planning its future campaigning efforts according to that interpretation. There is no critical analysis applied to that situation by the Sunrise Movement, which has made no distinction between Mayor Morse's inappropriate relationships with college students and the method by which his admission of those relationships was obtained. There is no recognition that those relationships were inappropriate. There is no mention of either of the two pending investigations.
Senator Markey is discussed for much of the interview, as an ally of the Sunrise Movement. A video featuring him, and a picture of Senator Warren, are both at the information page about the Sunrise Movement's creative director.