Sen. Amy Klobuchar Amy KlobucharSocial media platforms put muscle into National Voter Registration Day Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE (D-Minn.) will reportedly stress her Midwest roots and unity during a speech on Sunday afternoon when she is widely expected to announce a 2020 presidential bid.

Klobuchar will deliver her speech on Boom Island, a Minneapolis park adjacent to the Mississippi River. The river will serve as a central theme in her speech, according to excerpts obtained by CNN.

"The Mississippi River... all our rivers connect us... to one another. To our shared story," Klobuchar will say. "For that is how this country was founded, with patriots who saw more that united them than divided them."

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The two-term senator will emphasize her Minnesota roots, CNN reported, and her belief in "hard work, telling it like it is, and getting things done."

"I'm asking you to join us on this campaign. It's a homegrown one. I don't have a political machine. I don't come from money," Klobuchar will say, according to prepared remarks. "But what I do have is this: I have grit. I have family. I have friends. I have neighbors. I have all of you who are willing to come out in the middle of the winter, all of you who took the time to watch us today, all of you who are willing to stand up and say people matter."

Klobuchar would become the most recent Democrat to wade into the 2020 presidential race, joining Sens. Elizabeth Warren Elizabeth WarrenHarris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda Judd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report MORE (Mass.), Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (N.J.), Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (N.Y.) and Kamala Harris Kamala HarrisButtigieg stands in as Pence for Harris's debate practice First presidential debate to cover coronavirus, Supreme Court Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE (Calif.), among others.

The Minnesota senator has been the subject of reports in recent days that include allegations from former staffers that she fostered a hostile work environment. Unidentified former aides detailed instances in which they said Klobuchar berated staff over small mistakes, and left some workers in tears at times.