Former South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBipartisan praise pours in after Ginsburg's death Bogeymen 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 MORE's presidential campaign called on former New York City Mayor Michael Bloomberg Michael BloombergTop Democratic super PAC launches Florida ad blitz after Bloomberg donation The Hill's 12:30 Report - Presented by Facebook - Latest with the COVID-19 relief bill negotiations The Memo: 2020 is all about winning Florida MORE to drop out of the Democratic presidential primary race in a memo released on Thursday, warning that Bloomberg's presence in the race would propel Sen. Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.) to the Democratic nomination.

"If Bloomberg remains in the race despite showing he can not offer a viable alternative to Bernie Sanders, he will propel Sanders to a seemingly insurmountable delegate lead siphoning votes away from Pete, the current leader in delegates," Buttigieg's campaign wrote.

The campaign projected that if the dynamics of the primary do not change, Sanders would emerge from Super Tuesday as almost unbeatable, adding that Buttigieg was the strongest alternative to the progressive senator.

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Buttigieg's campaign pointed specifically to what critics called a shaky debate performance from Bloomberg.

"Bloomberg had the worst debate performance in presidential debate history and he showed he can’t handle Sanders, let alone Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE," the campaign wrote.

Buttigieg currently holds a slim delegate lead over Sanders, with the former mayor carrying 22 delegates and the senator carrying 21.

However, Bloomberg has not yet contested a state, and the billionaire's presence on the ballot in the delegate-rich Super Tuesday states is likely to shake up the race.

The Buttigieg memo comes one day after Bloomberg's campaign released a memo calling on Buttigieg, former Vice President Joe Biden Joe BidenSenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE and Sen. Amy Klobuchar Amy KlobucharThe Hill's Morning Report - Sponsored by The Air Line Pilots Association - White House moves closer to Pelosi on virus relief bill EPA delivers win for ethanol industry angered by waivers to refiners It's time for newspapers to stop endorsing presidential candidates MORE (D-Minn.) to drop out, warning the presence of so many moderates in the race would ensure Sanders the nomination.

"If Biden, Buttigieg, and Klobuchar remain in the race despite having no path to appreciably collecting delegates on Super Tuesday (and beyond), they will propel Sanders to a seemingly insurmountable delegate lead by siphoning votes away from [Bloomberg]," the memo read.