Charles Blow: Clinton is a force, but Sanders is a phenomenon.

The Michigan win put a new gust of wind into Sanders’s sails and strengthened his argument that he is a very real and viable alternative to Clinton — and that he shouldn’t feel one iota of pressure to leave the race before all the contests are finished.

Clinton is a force, but Sanders is a phenomenon. They both bring a seriousness and gravitas to the presidential discussion that is sorely lacking on the Republican side. In that, Democrats can take some pride regardless which of them wins the nomination, because either would probably soundly defeat the current Republican front-runner. According to an NBC News/Wall Street Journal poll released this week, both Clinton and Sanders would handily defeat the real estate developer in a general election matchup.

http://www.nytimes.com/2016/03/10/opinion/sanders-surprises.html?smid=tw-nytopinion&smtyp=cur