Outside groups, however, are pushing Republicans to support Corker's legislation.
Perdue said he would like to avoid the "last-minute drama of a September 30 deadline" when lawmakers would have to choose between a government shutdown or voting for a giant and unwieldy omnibus spending bill.
According to McConnell, the only possibility would be if there were legislation President Donald Trump were to sign.
"Joe Manchin is a guy who likes to talk to everybody and listen to them and nearly inevitably, he does what's right for West Virginia", Schumer said. Lawmakers are wary of a trade war, he said, but "we're not looking for a fight with the president". "Part of this job is persuasion", said Cornyn.
"I don't think there is a legislative response", Texas Sen. Corker wasted little time in jumping in to craft his proposal.
The bipartisan legislation that Corker filed would require the president to submit to Congress any tariffs put in place under a process that invokes national security.
Senate Republicans anxious about a possible trade war with US allies Canada, Mexico and the European Union are pushing a plan to give Congress the final say over some trade actions.
The defense bill will be open for amendments, McConnell said, and "we'll see what happens as it moves across the floor".
"It's totally out of fear of what Trump will do", said one Republican senator, speaking anonymously who warned a spat with Trump could hurt Republicans in the midterm elections.
Senate Finance Committee Chairman Orrin Hatch, who oversees trade policy and is deeply opposed to Trump's trade actions, said Corker "came off well" in his presentation.
Corker isn't alone on his side of the aisle. Sen. "On policy grounds, they strongly support this". It also includes four other GOP senators (and four Democrats). He said conversations with Democrats about appropriations have been "constructive".
While a handful of Democrat Senators reluctantly accepted the adjusted schedule, most Democrats accused the decision of being politically motivated to create an unfair playing field for the midterm elections.
"I don't think there's anybody on our side of the aisle that doesn't understand that the 232 authority is being greatly abused", Corker said, addressing reporters.
"Senate Democrats call it 'The Resistance.' They're resisting the will of the American voters, and it is not good", Trump said in the weekly address on June 2.
Toomey, who was re-elected in 2016 and thus insulated from immediate voter blowback, engaged with the Trump administration on tariffs as early as March 8, calling them a mistake. Heidi Heitkamp of North Dakota.
Asked if the move was a shot across the bow aimed at his political opponents, McConnell responded, "If you look at the amount of work that we have to do, it's conceiveable to me that we can't use these weeks, even with cooperation, we've got a lot of approproiation bills to pass".