Senator John Thune of South Dakota endorsed Mitt Romney’s bid for the Republican presidential nomination on Wednesday, making him the second conservative United States senator to declare support for Mr. Romney’s candidacy this week.
Mr. Thune, who in February decided against running for president himself, made the announcement during a morning campaign stop in downtown Des Moines with Mr. Romney. The endorsement comes as Mr. Romney is intensifying his effort to compete in the Iowa caucuses, now less than six weeks away.
Thune Endorses Romney
