If he doesn’t respond in some way, the MSM will play it as “No Comment”, which they always imply to mean GUILTY.
Let me rephrase. I think I single statement from the McCain campain should suffice.
Something that includes the John Glenn reference, and that both McCain and Glenn were cleared.
Although if Obama brings it up tomorrow night, I’d love to see McCain respond with something like “are you throwing your buddy John Glenn under the bus as well? It’s getting might crowded under there.”
I’m just not sure he has the giblets to do it.