(CNN) - While some U.S. lawmakers predict Congress can send an immigration bill to the president's desk soon, a lot of Americans consider that wishful thinking.
Sixty-nine percent of registered voters say they don't think members of Congress will be able to break through the partisan gridlock to pass a comprehensive reform package this year, while 27% have more faith in their elected leaders, according to the Quinnipiac University survey released Friday.
But those numbers show more optimism than in May, when slightly more voters–71%–didn't think they'd see an immigration bill come out of Congress, while fewer–25%–said the opposite.
While the Senate passed a comprehensive package with bipartisan support late last month, the issue's fate now hangs in the hands for the Republican-controlled House.
House Republicans met Wednesday to discuss the measure. According to those who attended the session, the GOP lawmakers agreed the country's immigration system needed to be fixed, but they were more divided over how to solve the problem.
They rejected the Senate version and insisted on drafting their own bill, a move that will extend the immigration debate farther, possibly through the rest of the year.
And the longer it takes for Congress to move on an immigration bill, the more likely it will become a big issue in next year's mid-term elections.
But the poll indicates that a plurality of voters–47%–say their elected leaders' votes on the bill will make no difference on whether they decide to support their representatives' respective re-election bids. Twenty-eight percent say a vote for immigration reform make them more likely to back their representative, while 19% say it will make them less likely to do so.
Breaking it down by party, 45% of Republicans say it makes no difference, while slightly less–20%–say it makes them more likely and 30% say it makes them less likely to support their representative.
For Democrats, 45% say it makes no difference, while 44% say it makes them more likely and 6% say less likely.
The Quinnipiac University survey was conducted June 28-July 8, with 2,014 registered voters nationwide questioned by telephone. The survey's overall sampling error is plus or minus 2.2 percentage points.