SALT LAKE CITY (AP) — A dozen Utah Republicans vying to replace Mitt Romney in the U.S. Senate are set to square off Saturday for the party nomination in a race expected to reveal the brand of political conservatism that most appeals to modern voters in the state.

Romney has long been the face of the party’s more moderate wing, and observers are closely watching whether voters select a successor whose politics align more with the retiring senator’s or Utah’s other U.S. senator, conservative Mike Lee, who supports former President Donald Trump.

The winner at Saturday’s state GOP convention, which tends to favor far-right candidates who appeal to the most zealous party members, may get a bump in the race. Losing candidates still will be able to qualify for the June 25 primary ballot by gathering signatures, so Republican voters will ultimately decide the party’s pick to succeed Romney.