The fact that the Republican Party has a vacuum for its policy platform isn't necessarily a problem for the U.S., even if the GOP does manage to take control of one or both chambers of Congress.
The real problem is that instead of a platform, what the party has offered America is a torrent of unalloyed racism and antisemitism.
Experienced political observers are struck by the degree to which overt racism and antisemitism has moved into the mainstream Republican and conservative discourse.
