Around 1 a.m. on July 27, 2017, I woke up, opened my politics Twitter list, and lay in the dark watching (via tweets) the Senate’s failed vote to repeal parts of the Affordable Care Act. Around 1:30 a.m., Arizona Senator John McCain cast the deciding vote to save the ACA. For the next hour and a half I read reaction tweets and watched clips of McCain’s thumbs-down.