Once the front-runner in polls, Rick Perry has fallen precipitously and is now tied with Herman Cain at 14 percent in an ABC/Washington Post survey. Mitt Romney has regained the top spot in this poll. For Texas Gov. Rick Perry these are not the best of times. In recent days he’s had to spend precious campaign time defending himself against charges that he leased a hunting camp with a racially offensive name. And Tuesday dawned with more bad news: A new ABC/Washington Post poll shows that his support is evaporating like a puddle in the west Texas sun. Once the...