Six Republican nominees for governor and the Senate in key midterm states, all backed by Donald Trump, would not commit to accepting the November outcome. Five others did not answer the question.
Supporters of the senator hope that the state’s unique nonpartisan primary system will help her, but allies of Tshibaka, a Trump-backed challenger, see a path to victory.
The Republican senator is leaning into her centrist credentials and bipartisan ties in her re-election race, hoping that voters will reward moderation as the G.O.P. has lurched to the right.