BISMARCK, N.D. (AP) -- The Latest on North Dakota's primary election:
8:30 p.m.
Republican state Sen. Kelly Armstrong has won North Dakota's U.S. House primary.
Armstrong is vying to replace Rep. Kevin Cramer, who is running for the U.S. Senate seat held by Democrat Heidi Heitkamp.
Armstrong easily defeated ex-Marine Tiffany Abentroth and former North Dakota State football player Paul Schaffner. State Sen. Tom Campbell also appeared on the ballot despite dropping out of the race.
Armstrong, an attorney from Dickinson, has strong ties to the state's oil industry.
He'll face Democrat Mac Schneider, a Grand Forks attorney who had no opposition in the primary. Schneider served two terms in the North Dakota Senate before being unseated in 2016.
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8:12 p.m.
U.S. Rep. Kevin Cramer has defeated a little-known opponent to win North Dakota's Republican primary for U.S. Senate.
Cramer easily beat Air Force veteran Thomas O'Neill on Tuesday.
Cramer now faces a tougher campaign to unseat Democratic Sen. Heidi Heitkamp in a race seen as critical for control of the closely divided Senate.
Cramer is a former state Republican Party chairman. He was first elected to the House in 2012 and has easily won re-election twice since then.
Cramer initially passed up the Senate race this year but said he changed his mind at the urging of President Donald Trump and others who saw him as the GOP's best hope to defeat Heitkamp.
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3:25 p.m.
North Dakota Secretary of State Al Jaeger says he doesn't expect any long lines at the polls during this primary election.
Realistically, there are no statewide races at stake during the Tuesday election. Jaeger says it will be local races pushing turnout, such as mayoral races in Bismarck and Minot.
Burleigh County Auditor Kevin Glatt says turnout is still "light" in Bismarck. Cass County Auditor Michael Montplaisir (mahnt-PLAY'-zur) describes turnout as "slow" in the state's most populous county.
Jaeger says there's likely to be a lot more excitement in November's general election. Republican U.S. Rep. Kevin Cramer is facing a little-known opponent in the Tuesday primary, but his campaign is focused on trying to unseat incumbent Democratic U.S. Sen. Heidi Heitkamp.
That race is seen as pivotal for control of the Senate, and Jaeger says "the nation's looking in on us."
Heitkamp doesn't have a Democratic primary opponent.
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2 p.m.
Local races are drawing voters in North Dakota's primary election, but a big statewide race is on the minds of many.
Republican U.S. Rep. Kevin Cramer faces little-known opponent Thomas O'Neill in the primary as he looks ahead to a fall Senate race. Incumbent Democratic U.S. Sen. Heidi Heitkamp doesn't face any primary opponent.
The two are likely to square off in a race seen as pivotal for control of the Senate.
Retired grain farm manager Faye Krumwiede (KRUHM'-wee-dee) of Bismarck favors Cramer. She says Cramer is "speaking directly to the people of North Dakota."
Retired Mandan surveyor Wayne Kurle (KUR'-lee) says President Donald Trump influences Cramer too much. Kurle says he favors Heitkamp because "she votes both sides of the aisle."
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12 a.m.
North Dakota Rep. Kevin Cramer faces a little-known opponent in the primary election as he looks forward to what's expected to be one of the nation's top Senate races in the fall.
Cramer and Democratic Sen. Heidi Heitkamp have been stockpiling millions for a race that Republicans see as one of their top chances to gain ground in the chamber.
Cramer's opponent Tuesday is Thomas O'Neill, an Air Force veteran who didn't mount a major campaign.
The other notable statewide race is for Cramer's U.S. House seat. State Sen. Kelly Armstrong was seen as a heavy favorite over a pair of lesser-known and lightly funded opponents.
