I heard the interview, it was the one with Mandy in a different thread. After he said he wouldn't run if his dad did she said but what if he didn't, would you run then? and he hesitated and said if Ron didn't run there would then be options on the table and he would explore those options.
I think Ron doesn't know anything about it, though, from his laugh when Cavuto raised it the other day, (near the end of the interview), Ron clearly thought it was really funny in an 'I appreciate the creativity of his response' sort of way. So they need to touch base when they get back to DC. I think the whole thing came up as happenstance response to a reporter question and now is getting a life of its own.
Rand's speech to the rotary club was very smooth today, by the way.