Former White House chief strategist Stephen Bannon said Saturday that President TrumpDonald TrumpDC goes to the dogs — Major and Champ, that is Biden on refugee cap: 'We couldn't do two things at once' Taylor Greene defends 'America First' effort, pushes back on critics MORE will "win with 400 electoral votes in 2020," following reports that he had lost faith in the president's ability to complete his current term.

"The populist, nationalist, conservative revolt that's going on, that drove Donald Trump to victory, that drove Judge [Roy] Moore to victory, that will drive 15 candidates to victory in 2018, and I hate to break it Graydon Carter and the good folks at Vanity Fair, but yes, President Trump is not only going to finish this term, he's going to win with 400 electoral votes in 2020," Bannon said during a speech at the Values Voter Summit in Washington.

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Bannon reportedly said several months ago that Trump only has a 30 percent chance of finishing his current term, a source told Vanity Fair, who said the president also did not know the function of the 25th Amendment, which allows a majority of the Cabinet to vote for the president to be removed from office.

Bannon returned to the far-right Breitbart News outlet after leaving the White House in August. The former Trump strategist said he left his post to be a "wingman outside" the White House for Trump to help advance the president's agenda.

In his speech Saturday, Bannon also committed that he would "get to the progressive Democrats," but said that "right now it's a season of war against the GOP establishment."

Bannon laid out his plans to back challengers to establishment Republicans in Congress for the 2018 midterm elections in an interview earlier this week. 

"There's a coalition coming together that is going to challenge every Republican incumbent except for Ted CruzRafael (Ted) Edward CruzRepublicans who backed Trump impeachment see fundraising boost US has seen 45 mass shootings in the past month The Hill's 12:30 Report: Nearly half of U.S. adults partially or fully vaccinated MORE," Bannon told Fox News's Sean Hannity on Monday. 

Bannon rallied for former judge Roy Moore in Alabama's Senate GOP runoff last month. Moore defeated Sen. Luther StrangeLuther Johnson StrangeThe Hill's Morning Report - Biden assails 'epidemic' of gun violence amid SC, Texas shootings Trump faces test of power with early endorsements Alabama zeroes in on Richard Shelby's future MORE, who was endorsed by Trump and congressional Republicans.

Trump surpassed the necessary 270 electoral votes in the Electoral College to defeat Hillary ClintonHillary Diane Rodham ClintonPelosi on power in DC: 'You have to seize it' Cuba readies for life without Castro Chelsea Clinton: Pics of Trump getting vaccinated would help him 'claim credit' MORE in the 2016 presidential election. Trump won 304 electoral votes to Hillary Clinton's 227.