Human garbage. It is the correct term for any two faced RINO that stabs his constituents in the back. Also applies to gay agenda backers, liars, globalists, global warmers, abortion backers, democrat sympathisers, amnesty proponents...you know...RINOS. And in Mitt specifically he hits every note on that piano. See his record for proof.
Just because someone does not agree with you on every subject does not make them human garbage. Get a grip.