Voters are sick of the two-party system. A new poll shows they're open to big changes

Voters cast ballots Tuesday at the Copland Center in Wyandotte, Mich. Finn Gomez/Getty Images hide caption

Amid growing frustration with both major political parties, voters are open to some big changes.

A new poll , commissioned by supporters of election reforms and shared with NPR, shows there is significant support for upending winner-take-all U.S. House elections and single-member congressional districts and instead moving toward proportional representation , a system that elects multiple representatives in a single district in rough proportion to a party's vote share.

Earlier this summer, about 500 democracy and legal experts sent a letter to Congress urging members to consider proportional representation as a solution to the redistricting brinksmanship set off by President Trump last year.

"There should be little doubt that the single-member district system is failing to deliver fair and representative outcomes," they wrote. "We urge Congress to adopt a proportional system of representation, solving the gerrymandering problem at its source."

According to the poll conducted by the advocacy group Fix Our House and liberal think tank New America, half of 1,000 respondents said they support proportional representation, with nearly a quarter opposed. A third of those who participated said they were not sure whether they supported it or not.

Lee Drutman, a senior fellow at New America, said he was surprised to see how much backing there is for proportional representation, despite the idea being fairly obscure in the United States.

"It really did shock me how supportive people were of the various principles of proportional representation across the board," he told NPR.