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 presidential campaign announced its first major ad buy on Tuesday, targeting several cities in Iowa with a message touting the Democrat's strength against 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.

In a 60-second piece targeting media markets in Des Moines, Cedar Rapids, the Quad Cities and Sioux City, the former vice president's campaign describes the 2020 election as more urgent than ever before.

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"We know in our bones this election is different," a narrator says. "We have to beat Donald Trump, and all the polls agree — Joe Biden is the strongest Democrat to do the job."

"He'll restore the soul of a nation," the narrator adds later. "[That's been] battered by an erratic, vicious, bullying president."

Biden's team described the ad campaign as a "high six-figure ad buy" that will be accompanied by an aggressive digital effort also costing six figures, which officials said would demonstrate Biden's effectiveness as a contender in the general election.

“Today’s ad in Iowa reinforces the enormous stakes of this election and makes a strong case for why Joe Biden is the best Democrat to take on Donald Trump next fall,” Biden's campaign manager Greg Schultz said in a statement.

"This election is about restoring strong, steady and stable leadership back to the White House, and today’s ad demonstrates why Joe Biden is the candidate to do just that," he added.

The campaign's announcement comes just a day after Biden's wife, Jill Biden, stressed her husband's electability in an interview while acknowledging that Democratic primary voters may prefer one of her husband's rivals on issues such as health care.

"I know my goal is to beat Donald Trump. We have to have someone who can beat him. So if you look at the polls, if you look at Joe with his record with independents," she told MSNBC.

"So yes, you know, your candidate might be better on, I don’t know, health care, than Joe is, but you’ve got to look at who’s going to win this election, and maybe you have to swallow a little bit and say, 'OK, I personally like so-and-so better,' but your bottom line has to be that we have to beat Trump," she added.

Joe Biden has remained the front-runner in most polls, including of Iowa, the first caucus state of the 2020 primary, however, Sens. 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.) and 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.) have chipped away at his lead in recent weeks.