Of course you can. Just look at how the MAGA movement has taken over the Republican party. It started during Obama's term, with the Tea Party movement. One-by-one, they primaried the old-school moderate Republicans, and eventually held majority control over their party's policy decisions. Once they had that, the remaining moderates either chose to fall in line, or were forced to retire.
That's how democracy works. Revolution is just an excuse to kill people for their political beliefs, when you're too lazy to convince them to change their minds.
Two sides of the same coin.