Storylines to Watch in Tuesday’s 2016 Presidential Primaries and Republican Caucuses

— -- Republicans will vote Tuesday in the Idaho, Michigan and Mississippi primaries and the Hawaii Republican caucuses. Democrats in Michigan and Mississippi are also holding their primaries.

In total, 205 delegates are at stake for the two Democratic candidates. On the other side of the aisle, 150 are up for grabs for the four remaining Republican candidates.

Here’s what to look for on Tuesday as voters in four states cast their ballots:

Michigan

Bernie Is Banking on Michigan

The Democratic primary in Michigan is a delegate jackpot and Bernie Sanders is hoping to pick up more delegates in the Great Lakes State to close the gap between him and Hillary Clinton.

While campaigning in Michigan, Sanders has attacked Clinton with a heavy focus on trade, arguing that Clinton’s support of “disastrous trade deals” has led to job loss in the state.

“If the people of Michigan want to make a decision of which candidate stood against corporate America, stood against these disastrous trade agreements, that candidate is Bernie Sanders,” the Vermont senator said at a campaign rally in Traverse City, Michigan, last Friday.

“We think we're going to surprise people here in Michigan,” Sanders said Sunday on ABC News' “This Week with George Stephanopoulos.”

However, a NBC/WSJ poll conducted in Michigan shows Hillary Clinton with a major lead of 57 percent among Democrats to Sanders’ 40 percent.

Hawaii Republican Caucuses