Sen. Thad Cochran (R-Miss.) leaves a pre-election day rally at the Mississippi Agriculture and Forestry Museum in Jackson, Miss., on Monday, June 2, 2014. (AP Photo/The Clarion-Ledger, Joe Ellis)

It’s primary day in eight states today, where voters headed to the polls in Alabama, Mississippi, New Jersey, New Mexico, South Dakota, Iowa, Montana and California. The biggest spotlight is on Mississippi, where Republican Sen. Thad Cochran is being challenged by tea party candidate Chris McDaniel, and Iowa, where state Sen. Joni Ernst is poised to finish first in Tuesday’s Republican primary for U.S. Senate. Check here for the latest results and analysis for all eight states.

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And here for a live tally of the numbers as they come in.