Paul Krugman: Does is really matter who the Democrats choose?

At this point, the Democratic presidential nomination is very much up in the air. Not only is it unclear who will be the nominee; it’s unclear whether the nominee will be a centrist like Joe Biden or Amy Klobuchar, or a representative of the party’s left like Bernie Sanders or Elizabeth Warren. Whoever wins, there will be much wailing and gnashing of teeth from the other side.So I’d like to offer an opinion that will probably anger everyone: In terms of actual policy, it probab