Begin impeachment proceedings. House Speaker Nancy Pelosi says the president is engaged in a coverup. Todays events have left even veteran political watchers stunned here in washington. Chief White House Correspondent john roberts starts us off tonight. Busy day at the white house. Good evening, john. You cant even call this wednesday. This was extra special busy today. The house Speaker Nancy Pelosi doubled down on her criticism of President Trump this afternoon charging that not only is he engaging in a coverup but also that he is obstructing justice which may be impeachable. If you thought relations between the president and Congressional Democrats couldnt get any worse, it appears they may still have some way yet to go. It was supposed to be a meeting about how to fund 2 trillion in infrastructure projects. But the plan blew sky high when just before leaving for the white house, Speaker Nancy Pelosi said this. We believe that the president of the United States has engaged in a cove