On Tuesday's PoliticsNation on MSNBC, during a discussion of Republican congressional members who have spoken of the possibility of impeaching President Obama, Washington Post columnist Dana Milbank labeled such talk "tribal politics" and compared it to a "revenge killing" against the President because he won the election. After host Al Sharpton played clips of several Republican members of Congress from a House Judiciary Committee hearing, Milbank dismissed the likelihood of impeachment and then added: But I think what this represents is not a serious effort to remove the President. But it's a certain frustration, and they said as much in...