This nice word blend malaphor was uttered by Sean Jackson, chairman of the Florida Black Republican Caucus and Trump supporter, on MSNBC’s Hardball. Mr. Jackson stated, “Hillary Clinton is in the process of refudiating everything that Mr. Trump says by trying to make him out to be the bigot.” See http://www.msnbc.com/transcripts/hardball/2016-08-26
This is a mash up of “repudiating” (rejecting the validity or authority) and “refuting” (proving or saying that something is not true). Word blend malaphors are an interesting subset of idiom blend malaphors. There are quite a few posted on this website. A shout out to Sam Edelmann who heard this one and passed it on!
If you liked this malaphor from the political world, you will want to get the book “He Smokes Like a Fish and other Malaphors”, available on Amazon! There is a whole chapter devoted to mash ups from politics.