If the gop screws the pooch in thr midterm elections, there may be no limit to the crap storm that follows.
That's entirely in the hands of the Party Elite. If they actually put up and support people worth voting for, they probably (IMO) will have little to worry about and will maintain or increase their representation, maybe even in both houses. If instead they choose once again to pull the same crap they've been pulling the last couple of presidential-election cycles, they will indeed screw the pooch, and will deserve every single bit of blame for the storm that will follow. They need voters like me, and those closer to centrist than I am, to want to support them instead of going third-party - but if they put up yet another milquetoast establishment candidate (or rather, a slate of them, for congressional elections), there's not a chance in hell that they'll get us, and they won't DESERVE us.
Republicans, make sure your party muckety-mucks toe the line. Don't settle for "Well, he doesn't have a D after his name..." ever again. Hold the party to the platitudes they've been mouthing (and lying about supporting) for years now.