Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE's campaign announced Saturday that former Iowa Gov. Tom Vilsack Thomas James VilsackUSDA: Farm-to-school programs help schools serve healthier meals OVERNIGHT MONEY: House poised to pass debt-ceiling bill MORE (D) and his wife Christie have endorsed Biden's White House bid as the former vice president seeks to shore up support in the early voting state.

"As I thought about the candidate who has the ability to bring us together as one nation, the progressive but practical vision for progress at home, the experience and personal relationships to repair America’s image abroad, and the best chance at winning the states we have to win to govern, I concluded that Joe Biden is the person for the job," Vilsack wrote in an op-ed for USA Today.

Vilsack, who served two terms as governor in the state ending in 2007, is a prominent party leader who served as head of the Department of Agriculture for all eight years of the Obama administration. He endorsed Biden a little more than 70 days from the Iowa caucuses, as Biden battles several Democratic rivals for support in the state, including South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice MORE (D), Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) and Sen. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE (I-Vt.).

ADVERTISEMENT

"I share the concern deeply held by many Americans of all political persuasions that our country is in a state of 'disorder,'" Vilsack wrote Saturday. "President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE and his administration continually abuse power, disrupt key foreign alliances and undermine democratic norms. The stakes for the nation in the upcoming election have not been this high in my lifetime. This places a serious responsibility on all of us who will participate in the caucus and who will vote in the general election."

"I think the next president must have the unique combination of the experience and the personal relationships with leaders of both parties to begin the hard work of bringing us together again as one nation," he continued. "The candidate I support must have a progressive vision for the country that builds upon past policy successes while addressing in a real and practical way our major domestic challenges: millions of Americans without access to affordable healthcare, a shrinking middle class, our broken immigration system and an unfair justice system."

Vilsack and his wife will join Biden for campaign stops Saturday in Des Moines and Knoxville, which the campaign said are “the first of many events the Vilsacks will attend for Biden across the Hawkeye State until the caucus on Feb. 3.”

The coveted endorsement from the top Iowa Democratic figure comes as Biden works to fight his way back toward the top of polls in the Hawkeye State. While Biden led in statewide polls for several months, he eventually ceded his lead to Warren and then Buttigieg, who has appeared at the top of three consecutive surveys recently.

The Biden campaign has hinted that it does not need to win Iowa or the following primary in New Hampshire to keep its momentum in the nominating contest, seeing South Carolina as a bulwark with its majority-African American primary electorate, which is still overwhelmingly supportive of the former vice president.

– Tal Axelrod contributed