ABC News' White House correspondent is leaving the network for a new role at CNN. He will host a new weekday program on CNN and serve as chief White House correspondent for the network beginning in 2013, CNN said in a statement on Thursday. "We are thrilled to have Jake join CNN and take the helm of a brand new weekday program," said CNN executive vice-president Ken Jautz. "Jake is an exceptional reporter and communicator, and we look forward to developing a program that takes advantage of all...