As rivals who consider Mike Huckabee soft on immigration ramp up their attacks, the former Arkansas governor acknowledged Thursday that his position on the issue may cost him votes. Huckabee for weeks now has been criticized for his 2005 support of state-sponsored scholarships for illegal immigrants. Legislation to provide the tuition aid failed in the Arkansas Senate. Huckabee admitted his stance is unpopular among a GOP voter base that has made immigration the No. 1 issue of the campaign. "If it costs me the election, it costs me the election," he told reporters at a luncheon on Capitol Hill. But...