The results of the Iowa caucuses matter because they are the very first votes cast in this year’s presidential race. Then again, political experts remind us over and over and over again that there is still a LONG way to go: 49 other nominating contests must take place before either party has a nominee that must then fight it out to win the White House. So, yes, Iowa is just a peculiar snapshot, but the way it all unfolded confirms the nature of this campaign: anti-establishment ideas have traction… and, yes, Donald Trump remains unpredictable: his concession speech to opponent Ted Cruz was low-key and dignified.