Former Obama campaign manager: 'Zero chance’ Clinton isn’t nominee
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President Obama’s former campaign manager on Monday argued that Sen. Bernie SandersBernie SandersJuan Williams: Honesty, homophobia and Mayor Pete Democrats on edge as Iowa points to chaotic race Democrats debate how to defeat Trump: fight or heal MORE (I-Vt.) has no hope of defeating Hillary ClintonHillary Diane Rodham Clinton3 ways government can help clean up Twitter Intelligence Democrat: Stop using 'quid pro quo' to describe Trump allegations The Memo: Bloomberg's 2020 moves draw ire from Democrats MORE for the Democratic presidential nomination.

“I believe Hillary Clinton has zero chance of not being the Democratic nominee,” David Plouffe wrote on Medium. "The Clinton lead is almost 300 in pledged delegates. And over 700 in total delegates.

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"Clinton will end the primary, even if she underperforms the rest of the way, with a pledged delegate lead greater than Barack ObamaBarack Hussein ObamaJuan Williams: Honesty, homophobia and Mayor Pete Democrats debate how to defeat Trump: fight or heal 3 ways government can help clean up Twitter MORE’s in 2008.”

Clinton leads Sanders with 1,712 delegates to his 1,004, according to the latest RealClearPolitics delegates count.

Plouffe argued on Monday that the former secretary of State’s edge is mathematically impossible for Sanders to overcome.

“In fact, Hillary Clinton has strengthened her hold on the nomination in the most recent contests,” he said.

“Because for every state that holds a contest, more delegates come off the board, and the percentage of remaining delegates Sanders has to win grows larger. The hill Bernie Sanders has to climb becomes more and more steep. Like a sheer, rock cliff.”

Plouffe added that Democratic superdelegates are not likely to change sides for Sanders, even after his wins in three states last weekend.

“And no, there is a zero percent chance the ‘super delegates’ will somehow go against the will of the voters and choose the second place candidate,” said Plouffe, who endorsed Clinton last October.

“I find it hard to believe the Republican Party leaders will take the nomination away from [Donald] Trump in Cleveland, the GOP’s clear vote and delegate leader,” he said of the Republican National Convention next July.

“But it’s not happening in Philadelphia,” Plouffe added of the Democratic National Convention the same month.

Sanders won caucuses in Alaska, Hawaii and Washington on Saturday, netting a majority of the 142 pledged delegates across the trio of states. He predicted on Sunday that his campaign would convert many of Clinton’s superdelegates” once they realize the “momentum” is on his side.