Robert Wittman

See the latest results in today’s key races including updates on the Michigan Senate primary, plus more elections in Michigan, Missouri, Kansas, Virginia and Washington.

Shannon Taylor, a prosecutor who pitched herself as a law-and-order Democrat, clinched the Democratic nomination in the seven-way primary for Virginia’s First Congressional District on Tuesday, according to The Associated Press.

The win sets her up to challenge Representative Rob Wittman, a tenured Republican, for a seat that Democrats see as one of their best opportunities for a flip in November.

Fresh off a narrow loss in the Democratic primary for Virginia attorney general last fall, Ms. Taylor enjoyed strong backing from the party establishment. She drew on her record as the district attorney in Henrico County, in the Richmond suburbs, including a 90 percent conviction rate in local homicide cases during her nearly 15 years in office, on the campaign trail.

Her candidacy in a bellwether district could help Democrats test the appeal of more moderate candidates. Democrats also hope Ms. Taylor can thwart Republicans’ arguments that the party is soft on crime.

Ms. Taylor has already previewed the case she’ll make against Mr. Wittman, portraying him as a Washington insider who has profited from stock trading and tax breaks that he voted for. Mr. Wittman, who was first elected nearly two decades ago, has contrasted his legislative experience with Ms. Taylor’s lack thereof and accused Democrats of making “empty promises.”

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