Democrats can repudiate tea party supporters by shitcanning the people they elect. Which is exactly what they did.
I believe that it is at least connoted
that repudiation is a disavowal of previously accepted
For instance, Stalin repudiated the Russian Orthodox Church in whose seminary he was studying
and Hillary repudiated the Original Americanism of Barry Goldwater
(She was once a Goldwater Girl
On the other hand, if a salesman approaches u
and u reject him in the middle of his pitch,
that is not a repudiation because u did not accept him in the first place.
(Its a little like u can't get a divorce if u have not been married.)