As Sarah Palin backs her bus over Paul Revere in order to alert the British, it’s hard as a progressive not to indulge in a kind of awe-struck, maniacal glee. The Republicans, it seems, are doing it again. Obama fails to get the country out of economic neutral, invades Libya, and leads the Democrats to a brutal midterm defeat—and then leans back as the Republicans noisily and embarrassingly immolate themselves.