(CNBC) President Donald Trump on Wednesday called on Attorney General Jeff Sessions to end Robert Mueller's Russia probe immediately, escalating his attacks on the inquiry.
"Attorney General Jeff Sessions should stop this Rigged Witch Hunt right now," the president wrote in a post on Twitter. "Bob Mueller is totally conflicted, and his 17 Angry Democrats that are doing his dirty work are a disgrace to USA!"
The tweet comes as Trump's ex-campaign chief Paul Manafort, who was indicted by the special counsel last fall, faces trial for the second day in federal court in Virginia.
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Sessions, who endorsed Trump's presidential bid during the 2016 campaign, recused himself from the Russia investigation last March, before Mueller was appointed. The investigation is being overseen by Deputy Attorney General Rod Rosenstein, who has defended Mueller against critics in Congress.