Sanders: 'We're making significant inroads' against Clinton
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Bernie SandersBernie SandersOvernight Energy: Trump set to sign offshore drilling order Meghan McCain: Obama 'a dirty capitalist like the rest of us' Dems might begin again with Kamala Harris and California MORE used the momentum from victories in two states’ caucuses out West to appeal to a young audience at a rally in Wisconsin Saturday. 

Fresh off of projected victories in Alaska and Washington’s caucuses, Sanders told a crowd in Madison his campaign was making significant dents in Hillary ClintonHillary Rodham ClintonOvernight Cybersecurity: Anticipation builds for Trump cyber order | House panel refers Clinton IT contractor for prosecution | Pentagon warned Flynn about foreign payments Trump’s foreign policy of more is about money Meghan McCain: Obama 'a dirty capitalist like the rest of us' MORE's campaign. 

"We are making significant inroads in Secretary Clinton's lead, and we have, with your support coming here in Wisconsin, we have a path toward victory," he said to an energetic crowd. 

He was later declared the winner in Hawaii, according to The Associated Press.

Sanders acknowledged the tough times his campaign saw in the early primaries, particularly in Southern states, most of which Clinton has won. 

"You know, we knew from day one that we were going to have, politically, a hard time in the Deep South. That is a conservative part of our country," Sanders said. "But we knew things were going to improve as we headed west." 

Next, Clinton and Sanders head to Wisconsin for the Democrat's upcoming April 5 primary, where the two are polling neck-and-neck.  

Clinton is leading by 6 points, according to an Emerson College poll released Wednesday. The poll puts the former secretary of State at 50 percent to Sanders’ 44 percent with 5 percent undecided.

But Sanders expects wins in Washington, Alaska and Hawaii on Saturday to push the campaign's momentum toward victory in Wisconsin.  

"I think it is hard for anybody to deny that our campaign has the momentum. You are the momentum. Look around you tonight," he said. 

There are 86 pledged delegates up for grabs in Wisconsin, and Sanders typically does well in Midwestern states with large college student populations.  

Madison, where he spoke Saturday, is the home of the University of Wisconsin Madison, which has close to 44,000 students. 

"You know, we have been told for a long time that young people were supposed to be apathetic, that young people were not interested in shaping the future of our nation," Sanders said. "Well, that is not what we are seeing in this campaign." 

--This report was updated on March 27 at 5:45 a.m.