ABC News’ Karen Travers, Jon Garcia and Rachel Martin report: Just minutes after pitching a perfect game, Chicago White Sox Mark Buehrle was pulled out of his post-game press conference to take a phone call from one very well-known fan. On the line was President Obama, an avowed White Sox supporter, calling to congratulate Buehrle on throwing the 18th perfect game in major league history and the first since 2004. On his way to the airport, to fly from Cleveland to his hometown of Chicago, Obama learned via email from a staffer back at the White House that the White...