Does that mean if the GOP wins the White House they can blackmail him too?
No, they cannot. Because that would require ruthlessness and balls. Something Republicans only have during primaries and can only be used on other Republicans.
The GOP doesn't care — they're exempt, and they're part of the elite… in fact, it's better if they can just keep just missing
on repealing/defeating ObamaCare so that they can play it like the NRA does gun-control.