know, i think he's inviting one. >> he's inviting a primary challenger according to senator flake. >> the story of 2016, 2015, 2016 from the republican standpoint was you looked at trump's poll numbers in general and among republicans and it was so p tant liesing if you were a republican who wanted to stop trump, the ingredients looked like they were there. he's not that popular with republicans. there's all these weaknesses. and nobody could find that combination. cruz couldn't, rubio couldn't -- >> how would trump fair in a one-on-one razor a one on two race as opposed to a one on 16 race? >> i think that the thing about trump and his appeal in the republican party and made it difficult for anyone to gain traction on him. traditionally was sort of a rump candidate. it's clearly there the tea party side, religious right side, clearly from the left side. trump was drawing support from the tea party r from moderates in the primaries, kerchlt, very