WASHINGTON (AP) — Senate Republicans voted to dismiss a war powers resolution Wednesday that would have limited President Donald Trump’s ability to conduct further attacks on Venezuela after two GOP senators reversed course on supporting the legislation.

Trump put intense pressure on five Republican senators who joined with Democrats to advance the resolution last week and ultimately prevailed in heading off passage of the legislation. Two of the Republicans — Sens. Josh Hawley of Missouri and Todd Young of Indiana — flipped under the pressure.

Vice President JD Vance had to break the 50-50 deadlock in the Senate on a Republican motion to dismiss the bill.

The outcome of the high-profile vote demonstrated how Trump still has command over much of the Republican conference, yet the razor-thin vote tally also showed the growing concern on Capitol Hill over the president’s aggressive foreign policy ambitions.

Democrats forced the debate after U.S. troops captured Venezuelan leader Nicolás Maduro in a surprise nighttime raid earlier this month

“Here we have one of the most successful attacks ever and they find a way to be against it. It’s pretty amazing. And it’s a shame,” Trump said at a speech in Michigan Tuesday. He also hurled insults at several of the Republicans who advanced the legislation, calling Sen. Rand Paul of Kentucky a “stone cold loser” and Sens. Lisa Murkowski of Alaska and Susan Collins of Maine “disasters.” Those three Republicans stuck to their support for the legislation.

Trump’s latest comments followed earlier phone calls with the senators, which they described as terse. The president’s fury underscored how the war powers vote had taken on new political significance as Trump also threatens military action to accomplish his goal of possessing Greenland.

The legislation, even if it had cleared the Senate, had virtually no chance of becoming law because it would eventually need to be signed by Trump himself. But it represented both a test of GOP loyalty to the president and a marker for how much leeway the Republican-controlled Senate is willing to give Trump to use the military abroad. Republican angst over his recent foreign policy moves — especially threats of using military force to seize Greenland from a NATO ally — is still running high in Congress.

Hawley, who helped advance the war powers resolution last week, said Trump’s message during a phone call was that the legislation “really ties my hands.” The senator said he had a follow-up phone call with Secretary of State Marco Rubio Monday and was told “point blank, we’re not going to do ground troops.”

The senator added that he also received assurances that the Trump administration will follow constitutional requirements if it becomes necessary to deploy troops again to the South American country.

“We’re getting along very well with Venezuela,” Trump told reporters at a ceremony for the signing of an unrelated bill Wednesday.

As senators went to the floor for the vote Wednesday evening, Young also told reporters he was no longer in support. He said that he had extensive conversations with Rubio and received assurances that the secretary of state will appear at a public hearing before the Senate Foreign Relations Committee.