Dem strategist: Clinton's lead is insurmountable

Democratic presidential candidate Bernie Sanders boosted his campaign by winning the Wisconsin primary on Tuesday, but rival Hillary Clinton's delegate lead is "insurmountable," according to a Democratic strategist.

"I think he has a path to winning a couple more states here and there, but Secretary Clinton has a significant and really insurmountable delegate lead," Winnie Stachelberg of the Center for American Progress Action Fund tells The Hill's Molly K. Hooper in an interview.

Sanders left Wisconsin "with about 10 more delegates than Secretary Clinton," Stachelberg added.

Watch the video above to hear the Democratic strategist in her own words.