Listen to everything Tom Steyer said during the Democratic presidential debate in Atlanta. More on the debate: The top Democratic presidential candidates spent large chunks of prime-time television clashing over "Medicare for All" — again. Like a string of previous debates, Wednesday's prominently featured squabbles over a program that could alienate general-election swing voters who may be wary of fully government-run, universal health care and that will be extraordinarily difficult to get through Congress — even if Democrats take the White House and make significant 2020 congressional gains. The latest faceoff, in Atlanta, came against the backdrop of impeachment consuming Washington, President Donald Trump making major foreign policy moves and well-known Democrats having left — or recently joined — the race. But the White House hopefuls just couldn't stop debating Medicare for All, in part because it represents an important ideological divide between progressive candidates and mo...