While this un-presidential phenomenon is nothing new, Trump seemed to take it to new -- and dangerous -- heights over the long Presidents Day weekend. Here's a quick whip-around of all the un-presidential things Trump tweeted this weekend -- in reverse chronological order. "Just watched a very insecure Oprah Winfrey, who at one point I knew very well, interview a panel of people on 60 Minutes. Hope Oprah runs so she can be exposed and defeated just like all of the others!" Hope Oprah runs so she can be exposed and defeated just like all of the others!

Source: CNN February 19, 2018 17:15 UTC