Presumptive Republican presidential nominee Mitt Romney won the Montana primary, according to the Associated Press, one of five nomination contests today.

Romney surpassed the required number of delegates needed for his party’s nomination on May 30 with his victory in the Texas primary. With no active opposition, he also easily won today’s primaries in New Jersey, South Dakota and New Mexico and was favored in California.

With 1 percent of Montana’s precincts reporting, Romney had 73 percent of the vote in the AP tally. Representative Ron Paul of Texas had 11 percent, followed by former Senator Rick Santorum of Pennsylvania with 9 percent and former U.S. House Speaker Newt Gingrich of Georgia with 4 percent.

Republicans will formally nominate Romney, 65, at their national convention Aug. 27-30 in Tampa, Florida.

To contact the reporter on this story: Don Frederick in Washington at dfrederick1@bloomberg.net

To contact the editor responsible for this story: Jeanne Cummings at jcummings21@bloomberg.net