WASHINGTON (AP) — So much for pushing back the start of primary season.Leapfrogging states aiming to increase their influence are threatening to push the first GOP contests into early January.A Florida commission is expected to announce Friday that its presidential primary will be held Jan. 31, a move that could spark a stampede by Iowa, New Hampshire, Nevada and South Carolina. Those states were granted special early voting status by both political parties.The result could be a primary season that many believe starts too early, lasts too long and leaves voters weary long before the November general election.Both political parties have tried to avoid a repeat of 2008 by delaying early presidential primaries and caucuses.