White House hopeful and 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 on Wednesday released a new ad in Iowa highlighting his health care plan as the issue continues to be one that divides the Democratic primary field.

The ad, which highlights support for Buttigieg’s “Medicare for All Who Want It” proposal, will run on both digital and television platforms in the Hawkeye State. Buttigieg’s presidential campaign told The Hill the ad purchase was a “substantial statewide buy.”

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“Medicare for All That Want It is very important. We have to have people have the choice to keep their private health insurance or to go on the Medicare plan,” one Iowa Democrat says in the ad.

“He seems sensible. Not going to promise something that he cannot deliver,” adds another.

The issue of health care has emerged as a top fault line within the crowded 2020 Democratic primary field, with the candidates fighting over how far government care should go in covering Americans.

Buttigieg and several other candidates, including former Vice President 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 and Sen. Kamala Harris Kamala HarrisTexas Democratic official urges Biden to visit state: 'I thought he had his own plane' The Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements A game theorist's advice to President Trump on filling the Supreme Court seat MORE (D-Calif.), have introduced plans to offer a public plan to Americans while allowing them to remain on their private insurance if they choose. 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 introduced their own plans to institute a single-payer system that would eliminate private insurance.

Buttigieg has ripped the plans that would cancel citizens’ private insurance plans in the past, noting that some employees have negotiated with their employers to gain their coverage.

“I think the best approach is to make this Medicare option available to everybody, but not command everybody to adopt it,” Buttigieg said last month. “There are a lot of labor union members who have negotiated very good health plans that are part of their compensation, and I don’t think they want to be forced into a plan they don’t know.”

Buttigieg has doubled down on his efforts in Iowa as polls have showed him surging in the state.

His campaign released another ad in the state last week highlighting national unity.

A Monmouth University poll released Tuesday found Buttigieg surging to the front of the pack in Iowa with a narrow lead over Biden and Warren.

“Buttigieg is emerging as a top pick for a wide variety of Iowa Democrats,” Patrick Murray, the director of the Monmouth University Polling Institute, said. “While he has made nominally bigger gains among older caucusgoers, you really can’t pigeonhole his support to one particular group. He is doing well with voters regardless of education or ideology.”