Bernie Sanders speaks at the Spokane Convention Center on Sunday in Spokane, Wash. (Jesse Tinsley/The Spokesman-Review via AP)

White House hopeful Bernie Sanders claimed a lopsided victory Monday in a Democratic nominating contest consisting of U.S. citizens living outside the United States, winning 69 percent of the vote against Hillary Clinton.

The Democrats Abroad global primary took place earlier this month in 38 countries, but results took some time to tally.

With his victory, the senator from Vermont won nine delegates to Clinton’s four — a relatively modest pickup in a nominating contest in which the former secretary of state leads Sanders by more than 300 pledged delegates.

Still, the results were a boost for Sanders, who is trying to mount an improbable comeback in the second half of the nominating calendar.

"This political revolution that is gaining momentum across America is now resonating all over the world," Sanders said in a statement. "There is a clear path to victory as we begin the second half of the delegate selection process.”

Sanders and Clinton will face off Tuesday in three states: Arizona, Utah and Idaho. On Saturday, voters have their say in Washington state, Alaska and Hawaii.