trump remains ahead of his republican challenges. he tops the field of 16 candidates with 20% in thursday's quinnipiac university poll. he is followed by wisconsin governor scott walker. who garnered 13%. and former florida governor jeb bush at10%. even though trump is leading polls wh te comes to general election match-up quinnipiac shows he would lose to democrat hillary clinton. and not only that, he trails self declared socialist senator bernie sanders by 8 percentage points. trump is in scotland right now. the business tycoon is promoting his hotel and golf course that's hosting the british women's open. the trip was meant to be a break from campaigning but as reported the focus keeps springing back it trump's political ambitions. >>. >> reporter: it's the trump helicopters. coming in to land at the trump hotel. overlooking the trump golf course. it can only mean one thing. another debate about illegal