Poll: Trump leads top 2020 Democrats in Wisconsin

President TrumpDonald John TrumpDemocrats blast Trump for commuting Roger Stone: 'The most corrupt president in history' Trump confirms 2018 US cyberattack on Russian troll farm Trump tweets his support for Goya Foods amid boycott MORE leads top 2020 Democratic White House hopefuls in theoretical match-ups in Wisconsin, a poll released Wednesday found.

Former Vice President Joe BidenJoe BidenTrump commutes Roger Stone's sentence Hillicon Valley: Facebook considers political ad ban | Senators raise concerns over civil rights audit | Amazon reverses on telling workers to delete TikTok House Democrat warns about 'inaccurate' polls: Trump voters 'fundamentally undercounted' MORE, Sens. Bernie SandersBernie SandersTrump glosses over virus surge during Florida trip The Hill's Coronavirus Report: Fauci says focus should be on pausing reopenings rather than reverting to shutdowns; WHO director pleads for international unity in pandemic response Ex-Sanders aide says Biden unity task forces need to go farther MORE (I-Vt.) and Elizabeth WarrenElizabeth WarrenDemocrats blast Trump for commuting Roger Stone: 'The most corrupt president in history' Pharma pricing is a problem, but antitrust isn't the (only) solution The Hill's Campaign Report: Democratic Unity Taskforce unveils party platform recommendations MORE (D-Mass.), and South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegBiden campaign hires top cybersecurity officials to defend against threats Biden strikes populist tone in blistering rebuke of Trump, Wall Street Buttigieg's new book, 'Trust,' slated for October release MORE all trail Trump in Wisconsin, according to the new Marquette Law School poll. Last month, all of these candidates except Buttigieg beat Trump.

Trump topped Biden, 47 percent to 44 percent, in the new poll.

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Trump also holds a 3-point edge over Sanders in Wisconsin, 48 percent to 45 percent. 

Trump's lead is wider against Warren, at 48 percent to 43 percent, and Buttigieg, at 47 percent to 39 percent, pollsters found. 

The results come as the House impeachment inquiry against Trump unfolds. Democrats launched the inquiry in September after a whistleblower reported Trump asked the Ukrainian president to look into Biden and his son. 

Trump won Wisconsin, along with Michigan and Pennsylvania, in the 2016 election, allowing him take the White House.   The Democratic Party is aiming to win these battleground states back in 2020. 

The new poll surveyed 801 registered voters in Wisconsin Nov. 13-17 and had a margin of error of 4.1 percentage points.