So let's get this straight:

• Republicans gain seats by accusing Democrats of trying to end Medicare (not true, but that was the claim).
• Republicans take the House and promptly vote for the Ryan budget, which ends Medicate (true, even though they claim it doesn't).
• Republicans beg Democrats not to be mean by mounting "disingenuous attacks" accusing the GOP of trying to end Medicare.

Apparently if a claim is a lie, it's not disingenuous, but if it's true it is disingenuous.

As Inigo Montoya said, "You keep using that word. I do not think it means what you think it means."