If it is true, it most likely started with Bush. Cruz and his wife worked for George W., and people associated with W. in his administration would have noticed Cruz’s behavior. It would be remembered and passed to Jeb. Then it was passed to Rubio when Jeb went nowhere. From Rubio it went to the press, until it found a willing publisher.
Also, posted here earlier”
“As for Heidi, perhaps she would like to tell us about her and GWB back in Kennebunkport during the campaign and after?”
http://www.freerepublic.com/focus/f-news/3413103/posts