Lt. Rob Polans ret. wrote:
That's pretty easy to verify. Who is in charge of passports? I've never had one. Ask if on wh**ever date H****r B***n was in China or the Ukraine.
That could at least verify that he'd gone there but I'm thinking something like this would not necessarily require face to face contact. In exchange for the billions to Ukraine, Ukraine might have suggested an increase in the son's business and contacted him from abroad.