Pollster says it's a 'gamble' for Republicans to oppose Trump's emergency declaration

Pollster Mallory Newall told Hill.TV's "What America's Thinking" in an interview that aired Thursday that it's a gamble for some congressional Republicans to oppose President TrumpDonald John TrumpWarren defends, Buttigieg attacks in debate that shrank the field Five takeaways from the Democratic debate in Ohio Democrats debate in Ohio: Who came out on top? MORE's emergency declaration. 

"You just have to hope that either  some sort of issue comes down the pike that matters more to Americans as we get closer to 2020, or that you are able to gain independent support potentially by not voting for an emergency declaration," Newall, research director at Ipsos Public Affairs, told host Jamal Simmons on Wednesday. 

"Most independents don't support it, so it's kind of a gamble," she added. 

Newall's comments came just hours before the Senate is slated to vote on a resolution to overturn Trump's emergency declaration at the southern border.

The House voted 245-182 to reverse the declaration last month, so Thursday's vote, in which the measure is expected to pass, could set up the first veto of Trump's presidency.

Trump declared the emergency last month as a means of securing funding for his long-promised border wall. 

A majority of Americans appear opposed to the move. 

Politico-Morning Consult poll released earlier this week found that 52 percent of respondents are against the emergency declaration, including 57 percent of independents. 

A full 80 percent of surveyed Republicans, however, support Trump's declaration.

— Julia Manchester