SALT LAKE CITY (AP) — Mitt Romney isn’t up for reelection this year, but his name is surfacing in Republican primaries throughout the nation. Candidates are using the label “Mitt Romney Republican” to frame opponents as insufficiently conservative and enemies of the Trump-era GOP. Candidates have employed the concept in attack ads and talking points in Michigan, Ohio and Pennsylvania. In Romney’s home state Utah, Republican challengers taking on incumbent congressmen are using the attack, even though Romney won overwhelmingly only four years ago. The fact that Romney remains potent attack fodder reflects his singular position in politics and ongoing divisions within the Republican Party.