They will all take similar positions designed to pander to the far right voters who generally swing the primaries. Then whomever comes out of this pander party with the nomination will backtrack and soften all those positions somewhat in an effort to attract less right leaning general election voters. The ideologues who would not back off their primary stances won't be nominated. In the end the best financed candidate will probably get the nomination and lose the general election. Enjoy the show.