AUSTIN - A week after Gov. Rick Perry's campaign tried to link one of his potential GOP primary rivals to U.S. Sen. Hillary Rodham Clinton, a 1993 letter emerged in which Perry called Clinton's efforts at health care reform "commendable." Perry's Republican allies circulated a videotape last week that has a shot of Clinton with U.S. Sen. Kay Bailey Hutchison, R-Texas, at a nonpartisan event on historic preservation. The videotape played up a brief hug and air kiss between the women and featured then-first lady Clinton, now the Democratic senator from New York, saying she is "delighted that Kay is...