Actor-politician Fred Thompson's unexpected expression of interest in seeking the Republican presidential nomination has attracted an equally unexpected favorable reaction, especially among social conservatives. In Tennessee Republican politics, former Sen. Thompson was allied with Howard Baker and Lamar Alexander in the state party's more liberal wing. However, his voting record in the Senate was solidly conservative. He is viewed by the Christian right as more acceptable than any of the three Republican candidates leading in the polls -- Rudy Giuliani, John McCain and Mitt Romney. Nobody is sure that Thompson really will run. He has been reported in line as...