These GOP establishment bassturds want Clinton to win.
It's pretty obvious that it's the outcome they want. Let's say they could change the rules before the convention to deny Trump the nomination. Then what? Virtually none of Trump's supporters will vote for whoever they nominate in his place (Mitt, Jeb, etc). They know this, so these shenanigans are an obvious ploy to hamstring "their" own party and guarantee Hillary's victory?
Why, you may ask? Because the real divide isn't between Democrat and Republican, it's establishment vs. anti-establishment grassroots. An establishment Democrat like Clinton is a lot closer to a Bush-style establishment Republican than either are to a populist firebrand like Trump or his supporters.
There's also the spite aspect: the GOP establishment resents the fact that voters rather than the RNC got to pick the nominee this time, and they would sooner see the party crash and burn than allow that to ever happen again. As far as they're concerned, 2016 was Jeb's turn just like it was Hillary's.
These GOP establishment bassturds want Clinton to win.
^^ Bottom line ^^