Sen. Bob Corker Robert (Bob) Phillips CorkerHas Congress captured Russia policy? Tennessee primary battle turns nasty for Republicans Cheney clashes with Trump MORE (R-Tenn.) is giving some advice to leaders of his own party: Don't ignore the voters.

“Here’s my message to the Republican Party leaders: Focus more on listening to the American people and less on trying to stifle their voice," Corker said Thursday in a statement.

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Corker, who isn't expected to endorse during the election, suggested lawmakers were partly to blame for the voter frustration that has fueled Trump's campaign.

“What’s happening ... is the result of two things: the fecklessness and ineptness of the Washington establishment in failing to address the big issues facing our country and years of anger with the overreach of the Obama administration," Corker added, suggesting voters "should be angrier than they are."

Republican leaders on Capitol Hill have been wary of publicly saying they won't support Trump if he's the party's nominee, while also rebuking some of his positions.

Corker's statement comes after he suggested during a Christian Science Monitor breakfast last month that while the Senate was getting more done under Republican leadership, Congress hadn't addressed the country's major problems.