Overview

• Jon Tester and Tim Sheehy secured their respective nominations for Montana's Senate race, setting up a high-stakes battle.
• Sen. Bob Menendez filed for an independent bid amid ongoing corruption charges, complicating the New Jersey Senate race.
• Incumbent lawmakers, including Tester and Menendez's son, largely fended off primary challengers across multiple states.
• Protest votes against Biden and Trump were notable but did not affect their primary victories.
• Key Senate and House races, including Montana's and New Jersey's, will be crucial in determining control of Congress.