President Donald Trump is finding new and growing pockets of resistance on Capitol Hill, raising questions over whether he can hang on to his dominance over the GOP.

In the span of a month, Trump has encountered GOP grumbling or outright defiance on a growing number of fronts. Much of the pushback has come from the Senate, where select Republicans have rejected his nominees, rebuked him over trade, and shrugged at his desire to end the filibuster. But that willingness to buck the president has more recently expanded to the House.