The Democratic senators for Michigan and Wisconsin announced their endorsements of Joe Biden Joe BidenMomentum growing among Republicans for Supreme Court vote before Election Day Trump expects to nominate woman to replace Ginsburg next week Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE’s presidential bid Wednesday as the former vice president seeks to make inroads in the crucial swing states.

Michigan 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 and Gary Peters Gary Charles PetersBiden promises Democratic senators help in battleground states Postal service changes delayed 7 percent of nation's first-class mail: Democratic report GOP votes to authorize subpoenas, depositions in Obama-era probe MORE and Wisconsin Sen. Tammy Baldwin Tammy Suzanne BaldwinKeep teachers in the classroom Cher raised million for Biden campaign at LGBTQ-themed fundraiser Democrats seek balance in backing protests, condemning violence MORE announced their support for Biden, who has all but locked up the 2020 Democratic nomination after Sen. Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE (I-Vt.), his lone remaining primary rival, dropped out and endorsed him.

Both Stabenow and Peters cited Biden’s work in the Obama administration to bail out the auto industry, which helped the Wolverine State during the recession.

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“Joe Biden has always had our backs in Michigan,” said Stabenow. “Time after time, he has been there for us when it really counted. Whether it's standing with our auto industry during the 2009 crisis, protecting our Great Lakes or making sure people have health care, Joe Biden understands our Michigan way of life.”

“I am proud to endorse Joe Biden because he’s always been there for Michigan. From standing with our state in rescuing the auto industry to providing economic stimulus to guide our communities out of the financial crisis — Joe has shown that he'll continue to be a champion for Michigan’s middle class families and workers,” added Peters.

Baldwin touted the importance Wisconsin holds in the 2020 race and said she would do everything she could to help Biden win the key state in November.

“I'm supporting Joe Biden for president not just because he's always fought for the bold, progressive change that working families in Wisconsin need — but because he understands that everyone deserves to be treated with dignity and respect — and afforded the opportunity to thrive,” Baldwin said in a video. “The road to the White House goes right through Wisconsin, and I’m going to do everything I can to make sure Joe Biden wins here in November. And I hope you’ll join me.”

The endorsements from the three senators follow backing for Biden from Democratic heavy hitters like former President Obama and Sens. Bernie Sanders (I-Vt.) and Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Mass.).

While unsurprising, the latest endorsements set up crucial establishment support for Biden in two states Democrats are eager to flip after narrowly losing them to President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE in 2016.