Nevada Gov. Joe Lombardo, a Republican, will face Democratic Attorney General Aaron Ford in a battle to hold onto his seat in November, setting up what is considered one of the most competitive governor's races in the country.

President Donald Trump spoke at length on Wednesday about Democrat Graham Platner, who clinched Maine's Democratic Senate nomination on Tuesday.

After a decade of roiling South Carolina and national politics, Rep. Nancy Mace finished a distant fifth in her state's Republican primary for governor.

Democrats also hoped for a Flippo victory, thinking it would make it easier for them to win over less partisan voters in November.

She is the rare Republican who sometimes can boost her own popularity back home by keeping her distance from President Donald Trump, and she has perfected that delicate dance even as his tightening grip on the party has cost two of her Senate Republican colleagues their reelection.

Tuesday marked an especially significant moment for Graham Platner, the embattled veteran and oyster farmer, who is fighting to rebuild his credibility in a campaign rocked by controversy.

Republicans and Democrats in Nevada, North Dakota and South Carolina select their nominees on Tuesday, but much of the nation's political focus will be on Maine. Democrat Graham Platner is expected to emerge from the primary to take on five-term incumbent GOP Sen. Susan Collins. But Platner has faced one scandal after another during the campaign. Geoff Bennett discussed more with Alex Seitz-Wald.