Former Sen. Max Baucus Max Sieben BaucusBottom line Bottom line The Hill's Morning Report - Presented by Facebook - George Floyd's death sparks protests, National Guard activation MORE (D-Mont.) has endorsed former Joe Biden Joe BidenThe Memo: Warning signs flash for Trump on debates Senate Republicans signal openness to working with Biden National postal mail handlers union endorses Biden MORE's Democratic presidential bid.

The former vice president's campaign announced Baucus's endorsement on Sunday, one day ahead of the Iowa caucuses that will kick off the Democratic primary process.

Baucus, who served as U.S. ambassador to China in the Obama administration, said in a statement that Biden “is a man of integrity and strong character, exactly what we need in our next president.”

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“Joe Biden is a respected leader with the domestic and foreign affairs experience critical to beat Donald Trump Donald John TrumpBarr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' Military leaders asked about using heat ray on protesters outside White House: report Powell warns failure to reach COVID-19 deal could 'scar and damage' economy MORE and move our country forward,” he added . “That’s why I’m proud to endorse Joe Biden for President.”

Biden’s campaign touts more than 1,300 endorsements from national, state and local officials.

The former vice president is one of four 2020 Democratic candidates expected to lead the Iowa caucuses, along with Sen. Bernie Sanders Bernie SandersSenate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Schumer, Sanders call for Senate panel to address election security MORE (I-Vt.), Sen. Elizabeth Warren Elizabeth WarrenNo new taxes for the ultra rich — fix bad tax policy instead Democrats back away from quick reversal of Trump tax cuts It's time for newspapers to stop endorsing presidential candidates MORE (D-Mass.) and former South Bend, Ind. Mayor Pete Buttigieg Pete ButtigiegBogeymen of the far left deserve a place in any Biden administration Overnight Defense: Woodward book causes new firestorm | Book says Trump lashed out at generals, told Woodward about secret weapons system | US withdrawing thousands of troops from Iraq A socially and environmentally just way to fight climate change MORE.

Biden held a slight lead in a Friday poll by Park Street Strategies for the Hawkeye State, with a 2-percentage-point lead over Sanders and 3-point leads over Warren and Buttigieg. The RealClearPolitics average currently shows Sanders with a 3.6 percentage point lead in Iowa.