Having inexplicably loomed beneath the surface during most of the GOP presidential campaign, has Obamacare now emerged as a major weakness of Donald Trump? The issue’s ultimate effect on the Republican frontrunner will largely hinge on whether Ted Cruz decides to release an Obamacare alternative and thereby make the centerpiece of the Obama presidency a central part of the campaign, and whether Marco Rubio decides to expand on the blueprint for an Obamacare alternative that he has offered up in an op-ed. But even if Trump’s two principal adversaries fail to elevate the issue by trying to demonstrate to voters how they’d offer a genuine path to repeal, Obamacare is already damaging the businessman’s prospects.

Trump’s most cringeworthy moment in the rough-and-tumble Texas presidential debate came when it became clear that, in addition to his not having been in the trenches during the seven years (and counting) of the Obamacare war, he doesn’t seem to have given much thought to Obamacare, or an alternative to Obamacare, at all. Indeed, Trump’s reflections on Obamacare were more reminiscent of when late-night T.V. shows ask random citizens on the streets about current events, for laughs, than of what one would expect from a presidential candidate, let alone a frontrunner.