The Associated Press has called both states for the Vermont senator. Washington's 101 pledged delegates make it Saturday's biggest prize. Democrats are also caucusing in Hawaii.
Bernie Sanders has won the Democrats Abroad Primary, with 69 percent of the vote. But where did all the votes actually come from? NPR answers some Dems Abroad FAQs.
For all the attention Donald Trump has gotten, more people have voted for Hillary Clinton than any single candidate. Of course, Republicans have had a much bigger field — and record turnout.
The rapper presumably meant to tag his location as Bogotá, Colombia, but instead checked in at Bogata, Romania, a small village which had some fun with the mistake.
The Democrat eked out a slim victory of just 1,531 votes over Vermont Sen. Bernie Sanders, who said he wouldn't ask for a recount in the state's primary.
Tuesday night's five electoral contests could spell the end of the road for at least two Republican candidates, while Bernie Sanders is hoping Rust Belt wins will boost him against Hillary Clinton.