TAMPA, FLA. - If the Republican National Convention takes on a Tea Party flavor with some libertarian spice, Mitt Romney backers can blame two women from Minnesota: Rep. Michele Bachmann and Marianne Stebbins. Stebbins, a longtime GOP activist from Excelsior who led Ron Paul's Minnesota campaign, has become a key player in the fight to get Paul activists a front-and-center role at the convention. Bachmann, who waited four months after dropping her own presidential bid to endorse Romney, headlined a fiery Tea Party rally on the eve of a convention choreographed to be a political coronation for Romney. "Our goal is not political power, our goal is to live free," Stebbins told thousands of Paul supporters who gathered at a college arena a few miles from the convention, where the libertarian Texas congressman will command upwards of 500 delegates, including most of Minnesota's delegates. "When politics becomes the goal, we have lost the mission." The Sunday rallies are the freshest threats to GOP efforts to portray the party as solidly behind Romney. With many Minnesota GOP delegates firmly backing Paul, the state's GOP activists are at the forefront of a ragtag and tenacious collection of small-government libertarians who are ushering in what is proving to be one of the most transformative political movements in a generation. Paul lashed out at Republican efforts to marginalize his supporters at the convention, telling those at the Sunday rally to stand firm because "we will become the tent eventually." In a New York Times