WASHINGTON (AP) — Mitt Romney has won the Utah Republican presidential primary, the last contest of a primary season that started with a crowded field in January and ended with Romney the only candidate campaigning for votes.

Romney already had more than enough delegates to claim the GOP nomination. On Tuesday night he won all 40 delegates in Utah.

Nebraska will hold its GOP state convention in July, but Utah held the last presidential primary on Tuesday, almost six months after Romney narrowly lost the Iowa caucuses to former Pennsylvania Sen. Rick Santorum.

Since then, Romney has dispatched Santorum, former House Speaker Newt Gingrich, Texas Gov. Rick Perry and former Utah Gov. Jon Huntsman.

Texas Rep. Ron Paul is still trying to win delegates at state conventions but stopped campaigning in primaries.