WASHINGTON (AFP) — Senator John McCain has won the Republican party's caucuses in Louisiana while longshot candidate Ron Paul took second place, the state party said Wednesday, citing preliminary results. Former Massachusetts governor Mitt Romney, a leading candidate for the Republican nomination, came in third, Louisiana Republican party Chairman Roger Villere said in a statement. "I offer my congratulations Senator John McCain on his success in the Louisiana caucuses," Villere said in a statement. "Senator McCain is an American hero and this is further evidence that he enjoys strong support in Louisiana and throughout the South," he said. Villere did...