Like it or not, people don't side with losers. Harold Stassen, though a bright and once youthful politician, became a stale joke after losing several primaries. Many pro-lifers and conservatives will drop out of the process. OTOH, the liberals and their political and cultural networks will be energized. Prepare for the Presidency and the Congress to revert to the Democrats. I wish I could be more optimistic.
I think the blinking applies to the politicians of the Repub Party, who have a track record of blinking, not to the bloggers and talk folks. But as Eisenhower said to JFK, if you're going to war, go to win. Otherwise, don't go.
However, I think there will be some negative resonance for the Dems on this, too. At what level of brain damage are you allowed to kill your spouse? If her mental level is that of a 3 year old? Maybe 2 or 1?
You don't appear to be the type.