washington chairman republican national committee seek friday tamp talk among republicans possibility run third-party candidate would give party supporters choice beyond donald trump interview rnc chairman reince priebus say third-party candidate would hope actually win nov. presidential election would instead ensure victory democratic nominee may well jump top floor build third party priebus say priebus vocal advocate party loyalists get concern trump support since track become presidential nominee stand real option republicans win white house bring trump together house representatives speaker paul ryan meet washington thursday try ease ryan concern back billionaire ryan stop short endorse trump say session productive priebus say two men open dialogue guess may even talk today weekend phone say priebus say democratic victory would allow democrats reshape conservative majority supreme court republican donors sit sideline democrats could also take control u.s. senate say participate presidential election might well kiss away senate well priebus say message direct republican donors unenthusiastic trump senate go presidential race go inextricably intertwine republicans continue hold hope lead figure party could persuade run president third-party candidate give party voters uncomfortable trump candidate rally around speculation center around 2012 nominee mitt romney frequent critic trump week romney say trump release tax record public disclosure move romney make 2012 trump resist republicans urge romney launch independent bid presidency discuss issue last week william kristol editor conservative-leaning weekly standard magazine source close romney say rnc 's priebus take dim view anti-trump third party talk