Sen. Cindy Hyde-Smith, R-Miss., is up with her first television ad as she moves to hold off a potentially stiff challenge from Chris McDaniel, a state senator, in a November special election.

Hyde-Smith was appointed to the Senate after Republican Thad Cochran resigned, and she is competing with McDaniel for the right to serve out the remaining two years of Cochran’s term. In her new campaign ad, running in most of Mississippi’s major media markets, Hyde-Smith ties herself to President Trump, who has yet to endorse her.