Will Bloomberg’s Bucks Help Beat Trump — or Boost Sanders?

Many Democrats are now understandably fixated on the strong showings of former Mayor Pete Buttigieg and Sen. Bernie Sanders, or on the disappointing performances of former Vice President Joe Biden and Sen. Elizabeth Warren. But the most important new dynamic in the race comes from Michael Bloomberg, a candidate who wasn’t even on the ballots or stages in Iowa and New Hampshire.
Ultra-sensitive to criticism that his entry into the race and more than $300 million in spending (so far) might splinter the centrist Democratic vote and lead to a Sanders nomination or a brokered convention,…