James Caldwell was among the handful of protesters, chanting slogans like "pay your fair share."
"The fact that he's running for president that's irrelevant. I pay taxes. Everybody out here pays taxes, and we feel that the amount of taxes that we pay should be in correlation, in fair correlation with the amount that he pays."
Protesters greeted the Republican presidential candidate during his stop in San Antonio earlier today. Romney's three city tour of Texas ends with the endorsement of former President Bush.