CHARLESTON, S.C. — Texas Gov. Rick Perry joined the Republican presidential field Saturday and told supporters he would make the federal government “as inconsequential in your lives as I can” by reducing taxes and easing regulations. Perry announced his plans before an overflow crowd at the conservative RedState Gathering in South Carolina, an important early primary state. His entry came hours before the release of results from a straw poll in Iowa where the crowded field of candidates was competing. Perry’s name wasn’t on the ballot, though it could be written in.Shortly before the speech, Perry launched a campaign website and held a conference call with state activists. “I full well believe I’m going to win,” he told them.Perry used his speech to slam Washington and President Barack Obama for “rudderless” leadership and “an unbridled fixation on taking more money out of pockets.”Perry said one in six work-eligible people in the country cannot find full-time work. “That is not a recovery. That is an economic disaster.” He promoted his record of job creation in Texas and said he would have the same success as president.