Ms. Tafoya, once a sideline reporter for N.F.L. games, has more recently turned her focus to Republican politics. She is seeking an open seat now held by a Democrat.
Republican election officials welcome the review, which relies on a federal verification tool, but they say they have not discovered a major problem when it comes to noncitizen voters.
People vote during the 2024 presidential election in Detroit. Mr. Trump and his allies have claimed for the past decade that elections are riddled with illegal votes cast by undocumented immigrants.