Can't stand it. Same with "Hillary".
Hillary had the problem of people otherwise not knowing which "Clinton" was being referred to.
And Hillary is a very unusual name for someone of her generation to have, so it's far more distinctive in a way that wouldn't work if her name was Susan or Karen.
Less so regarding campaign signs. The tendency, however, to say "...why Hillary lost", or otherwise refer to her in a context where she is clearly the only Clinton relevant, implies a sort of personal association with her that I find odd. "Bernie would've won" has that same quality; who's Bernie? Your friend? I think the only reason I don't react to "Jeb!" the same way is that his name had recently been used mockingly or in the context of derision, which makes it amusing.