Special counsel Robert Mueller's investigation has entered the West Wing — aides working in the White House. Mueller's team is charged with looking into whether anyone on Donald Trump's campaign worked with the Russians who attacked the 2016 election.
President Trump shakes hands with Russian President Vladimir Putin, as they pose for a group photo ahead of the Asia-Pacific Economic Cooperation Summit leaders gala dinner in Vietnam last week.
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Former Trump campaign chairman Paul Manafort (right), leaves U.S. District Court after pleading not guilty to federal charges, including "conspiracy against the United States," on Monday in Washington, D.C.
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