These are the headlines you Need2Know:

• California Wildfire Biggest on Record: The Mendocino Complex has grown 80 percent since Friday, burning roughly 283,000 acres in Lake County and destroying 75 homes. Officials said Monday the blaze is only 30 percent contained. For more on this story, check out the LA Times.

• 4 Primaries and 1 Special Election Today: Voters cast their ballots Tuesday for primary candidates in Michigan, Kansas, Missouri, and Washington, and will decide who wins the special election for a Columbus, Ohio, House seat. That race could indicate how likely Republicans are to hold off a Democratic challenge for control of Congress. Check out USA Today for the latest on election results.

• No Arrests in Chicago After Deadly Weekend: More than 70 people were shot, up to a dozen fatally, in a particularly violent weekend in Chicago. Police attributed the violence to gang members, but no arrests have been made. For more, check out the Chicago Tribune.

• Paul Manafort's Former Partner Testifies: In the trial of President Trump's former campaign chair, Manafort's former protégé Rick Gates testified that he and his partner hid 15 foreign bank accounts from the federal government. Gates pleaded guilty earlier this year to fraud charges and agreed to testify against his former mentor as part of his plea deal. For more, check out the NY Times.

Cheddar's Jill Wagner gets into the latest.

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