(AP) — Democrats in Nevada have two open congressional seats to defend in November, and Tuesday's primary voting set the stage for what could be some of the most expensive, hard-fought House races in the country.

Reporter Megan Messerly recaps the Nevada primary election.

Dean Heller, the most vulnerable Republican senator seeking re-election in Nevada this year, has an easy primary battle on Tuesday thanks to President Trump, leaving a contentious Democratic battle for governor as Nevada's most closely-watched race.