A super PAC backing 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's presidential campaign on Saturday blasted negative ads against Biden in early primary states as an attempt by 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 to sabotage him before he can benefit from key Democratic constituencies, according to Politico.

“Trump is spending considerable sums in the early states, particularly Iowa, in a hope to stop Biden’s momentum before he can get to the states where his coalition works to his benefit,” Democratic strategist Steve Schale wrote in a memo, according to the publication.

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“Trump’s digital advantage has been well documented, and just this week alone, the Trump campaign spent $250,000 in negative ads in Iowa and Nevada. He wants to choose the nominee, and we aren’t willing to let that happen,” Schale added.

The memo specifically points to Biden’s polling strength in South Carolina, the first contest involving significant numbers of African American voters, as well as Nevada, the first with a significant Latino population.

“Much like Secretary Clinton did after Iowa and New Hampshire, there is a very real path for Biden to get on a run to roll up delegates in the contests that come in the 6 weeks following New Hampshire,” the memo states, according to Politico.

The Biden campaign is reportedly basing its strategy around the possibility the former vice president will lose the Iowa caucuses, where a recent poll found 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.) in first place and Biden in fourth behind 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 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.