Trump publicly mocks GOP lawmakers who are trying to limit his tariff powers

• Some Republicans have signed onto bills or efforts to limit Trump's tariff powers.
• At a dinner with House Republicans on Tuesday, Trump fired back with mockery.
• "Congress takes over negotiating, sell America fast, because you're going to go busted," he said.

President Donald Trump has had enough of Republicans on Capitol Hill who are attempting to rein in his tariff powers.

At a fundraising dinner for House Republicans' campaign arm on Tuesday night, Trump openly mocked lawmakers in his own party who have sought to assert Congress's authority over trade.

"I'm telling you, these countries are calling us up, kissing my ass," Trump told a room full of House Republicans. "And then I'll see some rebel Republican, you know, some guy that wants to grandstand, say, 'I think that Congress should take over negotiations.'"

"Let me tell you, you don't negotiate like I negotiate," Trump continued. "Congress takes over negotiating, sell America fast, because you're going to go busted."

Last week, four GOP senators — including former Senate Minority Leader Mitch McConnell — voted for a resolution that would block Trump from imposing tariffs on Canada. Separately, seven GOP senators have signed onto a bill to require Congress to approve any new tariffs within 60 days.

Both efforts have little chance of becoming law, and if they reached Trump's desk, he could issue a veto. Still, both have exposed underlying rifts among Republicans on Trump's approach to trade.

On Tuesday night, Trump seemed to refer to GOP congressmen who had signed onto the House version of the tariff approval bill, which so far includes Reps. Don Bacon of Nebraska and Jeff Hurd of Colorado.

"I just saw it today, a couple of your congressman said, 'I think we should get involved in the negotiation of the tariffs,' Trump said in a mocking tone. "That's what I need. I need some guy telling me how to negotiate. I tell you, the happiest people in the world would be China."

Trump also said that Republicans pushing for a greater role for Congress in trade were undermining his administration's ongoing negotiations with countries on trade.

"Even the concept of it hurts your negotiation," Trump said. "When they see a little story like that, the other side, you know, it hurts your negotiation. And then the fake news wants to build it up, and it has no chance anyway."