Romney campaigns in San Antonio, Houston

June 6, 2012 5:19:10 AM PDT
Republican Mitt Romney has reason to celebrate as he campaigns in Texas.

Romney on Tuesday swept five states holding Republican presidential primaries -- California, New Jersey, South Dakota, New Mexico and Montana.

Romney has fundraisers scheduled Wednesday in San Antonio and Houston. He appeared Tuesday in Dallas and Fort Worth.

Backers say his two-day swing to Texas is expected to boost Romney's presidential campaign by $15 million.

The former Massachusetts governor locked up the Republican presidential nomination with his May 29 win in the Texas primary.