In his column on Monday, the New York Times’ Paul Krugman argued that Hillary Clinton is in the right, and Bernie Sanders much less so, when it comes to correcting the perceived failures of Obamacare.

The question is whether progressives “should re-litigate their own biggest political success in almost half a century,” and Krugman firmly believes they should do nothing of the sort. Switching to a single-payer system at this point would mean cutting out private insurers, “and like it or not, incumbent players have a lot of power.”

Like it or not, Krugman argued, Hillary Clinton is in the right here