(CNSNews.com) - New polls show former Vice President Joe Biden leading Sen. Bernie Sanders of Vermont in the Democratic primaries in Michigan, Missouri, Mississippi and Washington, all of which will be held on Tuesday, March 10.
Most of the polls show Biden with double-digit leads.
Three new polls of the Michigan primary were released today. They show Biden with leads ranging from 15 to 24 points in that state.
A Monmouth University poll of 411 likely Michigan voters that was conducted March 5 to 8 had Biden leading Sanders 51 percent to 36 percent.
A Mitchell Research poll of 602 likely Michigan voters had Biden leading Sanders 54 percent to 33 percent.
A Detroit Free Press poll of 400 likely Michigan voters had Biden leading Sanders 51 percent to 27 percent.
In Missouri, a Data for Progress poll released Monday of 330 votes had Biden leading Sanders 62 percent to 32 percent.
In Mississippi, a Data for Progress poll released Monday of 325 voters had Biden leading Sanders 77 percent to 22 percent.
In Washington state, a Data for Progress poll released Sunday of 737 voters had Biden leading Sanders 47 percent to 44 percent.
Idaho will also be holding a presidential primary on Tuesday and North Dakota will be holding caucuses. But recent polls on the Democratic presidential contests in those states are not available.