The poster asked "for a link to back up his claim" (not for an explanation of why the Trump-supporting friend thinks what he does)? 
As if the DUer only believes something if it appears in the media?
I though it kinda weird - though entirely in keeping with DUmp'Rat tactics - that this was a
PHONE CALL and yet the DUmp'Rat was asking for a
LINK from his normal 'friend' to prove the assertion.