Rush has never indicated any problem with Duncan Hunter. Duncan has just not gotten high enough for him to comment on. Dubai has nothing to do with it, Duncan is actually closer to Rush than any other candidate. Rush wasn't that concerned with the Dubai issue, what he was concerned about was the blind demagoguery going on when it came to light. The Dems got to show what great patriots they were by getting all pumped up over the issue, and then Republicans joined in.
I was against the Dubai deal, too, but the hypocrisy by Dems was noticeable. They would sell us out in a heartbeat, as shown in China in the 90s, the Soviet Union in the 80s, and in Iran right now.