Republican Senator Mike Lee, who had been shopping a second bill that would keep the emergency declaration in effect temporarily, said on Wednesday the White House had said Trump would not support his proposal, so he would be voting on Thursday to end the emergency declaration.
In contrast, 60 percent of Democrat and Independent voters said they would likely vote against a member of Congress who voted in favor of the national emergency, compared to 16 percent of whom would more likely vote for a member of Congress who backed the Trump's emergency powers to build the wall.
The president says GOP senators "are overthinking" the expected Thursday vote and he tweets that it should be thought of as "very simply Border Security/No Crime". That would be enough to kill the resolution in the Senate, provided no other Republican senators oppose of Trump's declaration or alter their position.
President Donald Trump went on the defensive (again) on Wednesday in (another) early-morning Twitter spree after Speaker of the House Nancy Pelosi said he was not "worth" impeachment proceedings unless the evidence against him was "overwhelming and bipartisan".
By late Tuesday, there were indications that GOP opposition to Trump's emergency along the Mexican border was softening.
Some Democrats don't want to wait until 2020 to oust President Trump, but with House Speaker Nancy Pelosi now coming out against impeachment, they're not sure what comes next. The resolution requires a two-thirds majority vote in both houses of Congress to override a veto. One said Tillis told his colleagues he could change his vote if Trump was indeed ready to curb presidential powers to declare emergencies without Congress' approval. Mike Lee, R-Utah, on Tuesday, would make national emergency declarations by the president subject to congressional approval every 30 days.
So far, four Republican senators have said they'll vote with Democrats to oppose Trump's emergency order.
Lavalin loses bid to negotiate agreement to avoid criminal trial
Conservative leader Andrew Scheer again demanded Mr Trudeau resign and accused him of trying to justify and normalise corruption. For her part, Philpott refused Friday to make any comment on her resignation or her future in the Liberal party.
Trump tweets: "We have a MAJOR NATIONAL EMERGENCY at our Border and the People of our Country know it very well!"
"We'll see whether or not I have to do the veto", Trump said Wednesday at an event at the White House.
The White House and GOP senators are working on a compromise that would limit the power of presidents to declare national emergencies on their own.
That would give Republicans who are uneasy about the constitutionality of the February 15 declaration - yet nervous about publicly rebuking Trump - some political cover to side with the president.
Trump made his views known in a phone call with Lee, as the conservative senator lunched with fellow Republicans at the Capitol, according to a person familiar with the call who spoke on the condition of anonymity to describe it. Another senior administration official said Pence heard the senators out and would take their arguments back to Trump.
He said the proposed measure would apply "prospectively", not to Trump's current border emergency.