Senator Bernie Sanders won a decisive victory in Wisconsin’s Democratic primary on Tuesday thanks to particularly strong support from voters experiencing economic anxiety and those looking for a non-establishment candidate.

He won more than four-fifths of voters looking for a president from outside the political establishment, and nearly as many of those who want the next president to move to President Obama’s left, according to exit polls conducted by Edison Research.

Three-fifths of voters who think trade with foreign countries tends to take away jobs voted for Sanders.

His supporters in Wisconsin voiced some reservations about Hillary Clinton’s ability to represent them. Almost half of Mr. Sanders’s voters said she was not liberal enough, and close to two-thirds said she was not honest and trustworthy.

Still, about half of his supporters said that if she were to win the presidency, they would at least be somewhat optimistic about how she would handle the office.