At some point he has to. He can't just impose term limits, and as I mentioned in another thread, term limits don't restore power to the voters unless gerrymandering and voter suppression are eliminated.

I don't see how he takes power away from the tea party, and the tea party is very much a bought party.

Which requires a constitutional amendment which will take decades to get the states to agree to it.

Its possible with a state ratifying convention, though the only amendment using that was the 21st for prohibition of alcohol.