Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE received a mixed reception Tuesday at a Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE rally in Janesville, Wis., when the GOP front-runner mentioned his name.

"How do you like Paul Ryan? You like him?" Trump asked the crowd in Ryan's home of Janesville, Wis.

While some in the crowd cheered, a hearty boo took over the room.

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"I was told to be nice to Paul Ryan. He's the speaker, he's a nice guy, he called me the other day, he was very nice.”

Surprised at the audience reaction, Trump asked the supporters whether they were Republicans and conservative. To both, the crowd cheered.

Trump made news with the decision to hold a rally in Ryan's hometown since the Speaker has repeatedly castigated him without explicitly mentioning his name. Last week, Ryan bashed the "ugliness" of the 2016 campaign just one day after Trump tweeted controversial comments about Ted Cruz Rafael (Ted) Edward CruzSenate Republicans face tough decision on replacing Ginsburg Cruz: Trump should nominate a Supreme Court justice next week Renewed focus on Trump's Supreme Court list after Ginsburg's death MORE's wife.