I think he is done, stick a fork in him. It does not make sense for him to continue if the entire establishment has gone against him and pulled the rug from underneath him in a way that has never been seen before! At least the GOP did not do a similar tactic to Trump.
This shows that the Dem establishment is much more powerful than the GOP establishment. The grassroots Republicans can overrule their GOP leaders in a way that grassroots Dems cannot overrule their Dem leaders.
“At least the GOP did not do a similar tactic to Trump.”
Well the GOPe was for Hillary and all the polls showed Hillary in a landslide, so they let Trump be the nominee. They didn’t expect him to win.