Midwestern Senate Democrats are leading their GOP rivals by double-digits in Michigan, Minnesota and Wisconsin, according to new polls by NBC/Marist.

Democratic Sens. Debbie Stabenow Deborah (Debbie) Ann StabenowOVERNIGHT ENERGY: Trump rollbacks could add 1.8 billion tons of greenhouse gas emissions over 15 years: analysis | Intensifying natural disasters do little to move needle on climate efforts | Experts warn wildfire smoke could worsen COVID-19 GAO report finds brokers offered false info on coverage for pre-existing conditions Democrats back away from quick reversal of Trump tax cuts MORE of Michigan, Tammy Baldwin Tammy Suzanne BaldwinSenators introduce bipartisan bill to mandate digital apps disclose country of origin Keep teachers in the classroom Cher raised million for Biden campaign at LGBTQ-themed fundraiser MORE of Wisconsin and Tina Smith Tina Flint SmithThe Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power Credit union group to spend million on Senate, House races Health officials tell public to trust in science MORE of Minnesota all lead their Republican opponents by significant margins in the polls.

Polling gave Baldwin a lead over both of her possible GOP opponents, Kevin Nicholson and Leah Vukmir.

She leads Nicholson 54 to 39 and Vukmir 55 to 38 among likely voters who were polled.

Stabenow leads her potential Republican rivals, John James and Sandy Pensler 55 to 37 percent and 52 percent to 37 percent, respectively.

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Smith leads her GOP challenger Karin Housley 49 percent to 35 percent in a general election pairing, the poll found.

The NBC/Marist poll results emerge as speculation increases over the fate of Midwestern Democrats in states that went to President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE in the 2016 presidential election. Analysts have speculated over whether moderate Democrats can take back states that went red.

Trump won Michigan with 16 electoral votes in 2016, sweeping a state that went to former President Obama in 2012. He won Wisconsin, which Obama also won in 2012, with 10 electoral votes.

Though Trump did not take Minnesota, he lost by a very narrow margin of 1.5 percent.

The NBC/Marist polls surveyed registered voters between July 15-19. The margin of error for the 886 registered voters in Michigan is 3.9 percent, 4 percent for the 876 registered voters in Minnesota, and 3.8 percent for the 906 registered voters in Wisconsin.

-Updated 7:18 p.m.