@CNN: RT @CNNnewsroom: Historian Doug Brinkley weighs in on Trump’s Obama problem & the possible repercussions https://t.co/oLUONif8iQ https://t.co/vel1z8RNaK

@CNN: RT @CNNnewsroom: Historian Doug Brinkley weighs in on Trump’s Obama problem & the possible repercussions https://t.co/oLUONif8iQ https://t.co/vel1z8RNaK