Paul Krugman says...

...this morning that:

The key to understanding the G.O.P. analysis of health reform is that the party’s leaders are not, in fact, opposed to reform because they believe it will increase the deficit. Nor are they opposed because they seriously believe that it will be “job-killing” (which it won’t be). They’re against reform because it would cover the uninsured — and that’s something they just don’t want to do.

I think Krugman is only partially right.

The only plausible reason that Republicans are opposed to the Affordable Care Act is that it was a Democratic legislative accomplishment. Since the ACA is based on RomneyCare and the Republican health care reform bill of 1993, it can't possibly be about policy. It has to be about politics.

(In fact, if the GOP really did "repeal and replace" the ACA, they would end up replacing it with something almost identical.)