fail republican vice-presidential candidate reality tv star sarah palin threaten lead open revolt republican convention fall candidate donald trump choose nominee palin issue threat party interview associate press 2008 vice presidential nominee tell associate press gop voters right decide party nominee rebel house speaker paul ryan white knight choose contest convention ryan say week seek accept nomination.palin say voters know good fool party leaders dare palin ask denounce arrogant political operatives underestimate wisdom people party leaders try intervene july convention rise say vote count activism count said.palin infamously announce rid so-called trump train event january praise trump go rogue leave right allow tear veil idea system comment come republican establishment continue try stop trump win nomination since believe poll back would disaster party fall either democratic candidates.texas senator ted cruz try set defacto trump alternative ohio governor john kasich continue run despite win one state home state result anti-trump vote dilute primaries even cruz operatives work party meet snipe many trump delegate away possible.currently trump need 1,237 delegate secure nomination right 755 210 ted cruz 545 delegate trump widely expect win upcoming primaries new york maryland add lead.featured image via flickr chaos sarah palin promise lead gop revolt trump deny nomination