Generally, whereby a group of lickspittles and enablers of a person (for example, a political leader) explain how they were always against such person but secretly opposed them from within their organization.
With Senator Cornyn's stunt yesterday it seems The Great Moonwalking - in which an army of Trump lickspittles and enablers suddenly explain how they were always anti-Trump but secretly opposing him from the inside - is actually kicking off two weeks in advance of the election. - Josh Marshall