I thought Karl Rove's 2004 Swift Boating of John Kerry's Vietnam service record in the US Navy was pretty disgusting, but the recent smears against President Barack Obama for winning Sgt. Bowe Bergdahl's release have descended to a new low.
What at first seemed very clear-cut almost instantly became clouded in fog. This fog may clear some when the Army makes a formal statement about the circumstances of Bergdahl's capture by the Taliban, but until that point the speculation is running pretty wild.
When it serves him politically to condemn Halliburton's abuses, he takes that view. When he's running for president and seeking to establish his bonafides with the Republican base, a different John McCain emerges.