true, right? >> reporter: that's right. he was tweeting about something that he used to talk about on the campaign trail. he was talking about general john pershing. we can show you this tweet. "study what general pershing of the united states did to terrorists when caught. there was no more radical islamic terrorists for 35 years." general john pershing back in the philippine/american war, a legend has it and president trump has talked about this, he talked about it on the campaign trail, that pershing would dip bullets in pig's blood before murdering prisoners. that's been totally rebunked. the president likes to repeat the story and did so again today. anderson, not only has this been