Poll: Trump leads in Wisconsin
© Greg Nash

Donald TrumpDonald John TrumpPelosi arrives in Jordan with bipartisan congressional delegation Trump says his Doral resort will no longer host G-7 after backlash CNN's Anderson Cooper mocks WH press secretary over Fox News interview MORE is the number one GOP presidential pick in a poll of Wisconsin Republican voters.

The real-estate mogul garners 20 percent support, according to a poll live-tweeted by the University of Marquette Law School on Wednesday.

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He’s followed by Ben CarsonBenjamin (Ben) Solomon CarsonTrump officials say aid to Puerto Rico was knowingly stalled after Hurricane Maria Yes, President Trump, we do have a homelessness crisis and you're making it harder for us to address New HUD rule would eliminate housing stability for thousands of students MORE at 16 percent, Sen. Marco RubioMarco Antonio RubioWhite House staggers after tumultuous 48 hours Erdoğan got the best of Trump, experts warn Hillicon Valley: GOP lawmakers offer election security measure | FTC Dem worries government is 'captured' by Big Tech | Lawmakers condemn Apple over Hong Kong censorship MORE (R-Fl.) at 14 percent, Carly Fiorina at 11 percent, former Florida governor Jeb Bush at 7 percent and Sen. Ted CruzRafael (Ted) Edward CruzHillicon Valley: GOP lawmakers offer election security measure | FTC Dem worries government is 'captured' by Big Tech | Lawmakers condemn Apple over Hong Kong censorship Lawmakers condemn Apple, Activision Blizzard over censorship of Hong Kong protesters The Hill's Morning Report — Trump's impeachment jeopardy deepens MORE (R-Texas) at 5 percent.

Trump is up 11 points since the poll’s last iteration in August. Other big risers are Rubio, who is up 7 points, and Fiorina, who is up 4 points.

The poll attributes the businessman’s success to his favorability among former supporters of Wisconsin Gov. Scott Walker (R), who dropped out of the race last week.

Trump claims 22 percent of those who say they would have supported Walker’s presidential bid, the most among any candidate. Rubio garners 14 percent of ex-Walker backers, followed by Carson with 11 percent, and Cruz with 10 percent.

Twenty-eight percent of respondents say they would have supported Walker’s campaign had he stayed in the race.

Although Trump is the first choice among a plurality of Republican voters in the state, only 5 percent of respondents choose the real estate-mogul as their second option.

Rubio is the favorite runner-up, with 17 percent of voters choosing him second, followed by Fiorina with 15 percent and Carson with 12 percent.

The poll surveyed 321 Republicans in the state through landline and cell phone calls from Sept. 24 – 28. The margin of error is 6.5 percent.