About his claim there are Middle Easterners in the caravan in Mexico, Trump admits he has no proof; "there's no proof of anything"
That came moments after VP Pence said it was 'inconceivable' to think there were not Middle Easterners in the caravan
When Pence said he had been told Venezuela was behind the caravan, Trump interjected that maybe Democrats were too
The President offered no proof for that claim either
