Heath care is a big issue in the presidential campaign, and Seth Meyers had some fun to poke at Donald Trump's vague plan to replace ObamaCare with something "terrific." But mostly he looked a single-payer plan like that proposed by Sen. Bernie Sanders. "Some Democrats, like Hillary Clinton, have questioned whether such a system would be feasible, but we may be about to get a real-life test case in Colorado," Meyers said on Monday's Late Night.