Louisiana has been hit by devastating flooding, and thousands of people have lost everything. Eleven people have died.President Obama is currently vacationing on Martha's Vineyard, and aside from signing a disaster declaration five days ago, has otherwise not commented on the situation. (He did, however, have time to go to a Hillary Clinton fundraiser.)Compare this to pop star Taylor Swift. Swift, who began The 1989 World Tour in Louisiana last year, said that she appreciated her fans in Louisiana and was heartbroken by the devastation in the state. She then pledged to donate $1 million in relief money and encouraged...