Donalds, Nixon win key US primaries

Byron Donalds won Florida's Republican gubernatorial primary with Trump's endorsement, while progressive Angie Nixon upset Alex Vindman in the Democratic Senate primary.

In Alaska, Dan Sullivan and Mary Peltola advanced to a key Senate matchup that could help decide chamber control.

Trump's endorsement record took a hit with several of his picks losing their primaries.

The results set up a November battle for the Senate that could hinge on these two states.