@timkaine and I had a very vivid shared hallucination four years ago or Maureen had too much pot brownie before writing her column again,” the 2016 presidential nominee tweeted.Running alongside Dowd’s Saturday op-ed in the NY Times — with a subhead of “Has America grown since 1984, or will the knives still be out for Biden’s running mate?” — was a photo of the 1984 nominee of the Democratic Party and his running mate, New York congresswoman Geraldine Ferraro.Also Read: Hillary Clinton Endorses