The highlight of Tuesday's elections was the gubernatorial recall vote in Wisconsin, which Republican Gov. Scott Walker won over his Democratic challenger.
Mitt Romney swept the five states holding Republican presidential primaries -- California, New Jersey, South Dakota, New Mexico and Montana. Romney and Democratic President Barack Obama already have won enough delegates to claim their parties' nominations.
Other highlights of voting:
Senate: Under a new primary system, the top two choices competed in the general election regardless of party affiliation. Democratic Sen. Dianne Feinstein was by far the top choice of voters. She will face first-time candidate Elizabeth Emken, a Republican.
Ballot initiative: A contentious ballot proposal to add a $1-a-pack tax on cigarettes to fund cancer research remained too close to call after a $65 million spending spree by opponents and supporters.
Senate: Rep. Denny Rehberg won the Republican primary to challenge Democratic Sen. Jon Tester. Rehberg faced token primary opposition and Tester was unopposed.
Governor: Former Rep. Rick Hill won Montana's Republican nomination for governor and will face Democrat Steve Bullock, the attorney general, in the general election.
Senate: Republicans picked state Sen. Joe Kyrillos to challenge Democratic Sen. Bob Menendez in November. Menendez was unopposed in the party primary.
House: In the 10th Congressional District, Newark City Councilman Donald Payne Jr. won a special election to finish the term of his late father, Rep. Donald Payne, and the primary to be the Democratic nominee in the November election. In the redrawn 9th Congressional District, Democratic Rep. Bill Pascrell defeated fellow Democratic Rep. Steve Rothman. Pascrell was backed by former President Bill Clinton while Rothman drew support from President Barack Obama.
Senate: Former Rep. Heather Wilson won the Republican primary to fill the seat of retiring Democratic Sen. Jeff Bingaman. Rep. Martin Heinrich defeated state auditor Hector Balderas for the Democratic nomination.
House: Bernalillo County Commissioner Michelle Lujan Grisham Tuesday won a close and feisty race for the nomination to succeed Heinrich in Albuquerque's 1st Congressional District. State Sen. Eric Griego came in second, and former Albuquerque Mayor Marty Chavez trailed in third. Grisham will face former Republican state Rep. Janice Arnold-Jones, who ran unopposed.
House: In the Democratic primary for the state's only House seat, Matt Varilek, former economic development director to Sen. Tim Johnson, defeated Jeff Barth, a retired telephone company technician and county commissioner. Varilek opposes Republican Rep. Kristi Noem in the fall.
Recall: Republican Gov. Scott Walker became the first governor in U.S. history to survive a recall effort, defeating Milwaukee Mayor Tom Barrett, the Democrat who lost the gubernatorial election to Walker in 2010. Walker had angered many voters with his strategies to cut back state spending and eliminate union rights for most public workers.