In an opening statement provided to The Associated Press, Gates said he "should never have met with Epstein in the first place," but that he "never witnessed nor had any indication that Epstein was engaged in ongoing criminal conduct."

Tuesday marked an especially significant moment for Graham Platner, the embattled veteran and oyster farmer, who is fighting to rebuild his credibility in a campaign rocked by controversy.

Voters across Maine, Nevada, South Carolina and North Dakota head to the polls Tuesday for another day of primary elections in America, but much of the political world will be focused on Maine's high-stakes U.S. Senate contest.

Republicans are warning the White House that a critical surveillance authority is likely to lapse this week amid bipartisan backlash over President Donald Trump's pick to lead the nation's intelligence community.