Boustany, Melancon top vote Tauzin III awaits final tally By PATRICK COURREGES and ANGELA SIMONEAUX Acadiana bureau Southern Louisiana voters Saturday appeared to have decided the last two congressional races in the nation, electing Democrat Charlie Melancon in the 3rd District and Republican Charles Boustany Jr. in the 7th District, giving the Democratic and Republican parties a split of the final two seats available. But the 3rd District race was decided by slightly more than 500 votes out of more than 114,000 cast, and 3rd District Republican candidate Billy Tauzin III is not conceding the race. In the 3rd District,...