Republican John McCain of Arizona said in a statement Thursday that he’s decided to support the Senate tax bill.

“I believe this legislation, though far from perfect, would enhance American competitiveness, boost the economy, and provide long overdue tax relief for middle class families,” McCain said.

McCain hadn’t taken an official position on the tax plan until now — and no one was taking his vote for granted after he shocked the political world by voting against a rushed attempt to demolish the Affordable Care Act this summer.