"No other candidate in this race has a comparable record of repeatedly standing up for conservative principles and winning on a national level," Cruz told Hotline On Call. Cruz, who served as the state's solicitor general from 2003-2009, has argued before the U.S. Supreme Court eight different times, often championing particularly conservative positions. Williams, who has won three statewide elections for Railroad Commissioner, is confident in his ability to appeal to Texas grassroots conservatives. "At the end of the day I think Texans are going to want a game-changer," Williams told Hotline on Call. "There's only one game-changer in this race, and I'm the game-changer." For evidence of his "game-changer" status, Williams pointed to his record as a committed conservative who will stand up to the establishment. Cruz and Williams are friendly and even have spoken back-to-back at some of the same Tea Party gatherings in Texas. Both candidates speak passionately about individual freedom and the dangers of Pres. Obama's agenda. But as the race heats up, the two will likely find themselves increasingly vying for the same supporters in Texas and on the national conservative landscape.