Jon St. John, probably most well-known to you guys as the voice of Duke Nukem, was asked recently "to be the advertising voice of the Republican party's leading candidate for president" in the US. He said, and I'm paraphrasing, get the hell outta here. St. John wrote on Facebook yesterday:
I don't like to turn down jobs...especially when it's a national ad campaign that pays pretty well. But I have a conscience and could not accept a gig to be the advertising voice of the Republican party's leading candidate for president. Thanks for the kind offer, but I will sleep just fine at night knowing I made a choice I can live with.
Asked by The Verge to clarify which candidate it was, St. John said "I should have written 'a leading GOP candidate for president'. It might have been Trump or Cruz. Either way, I would not have done it."