Sanders sweeps, wins Alaska, Hawaii, Washington Democratic caucuses

Sen. Bernie Sanders won the Alaska, Washington and Hawaii Democratic presidential caucuses on Saturday by decisive margins -- victories he hopes will spark a Western states comeback and help him cut into frontrunner Hillary Clinton’s substantial lead.

"We knew things were going to improve as we headed west," Sanders said at a rally in Madison, Wis. "We are making significant inroads in ... Clinton's lead ... We have a path toward victory."

Sanders won Alaska 81-to-18 percent; 68-32 in Hawaii and 73-26 in Wshignton over Clinton, with all precincts reporting.

Washington was the biggest prize, 101 delegates, followed by Hawaii with 25 and Alaska with 16.