Some recent news stories verge on the bizarre — for example, the House Democrats’ futile fuss over impeachment and Speaker Nancy Pelosi’s simultaneous acceptance of President Trump’s U.S.-Canada-Mexico trade treaty. But they’re not as bizarre, or possibly as consequential, as unanticipated developments in the Democrats’ presidential nomination contest.

Consider the role of money, which Democrats are always saying plays too big a role in politics. This year, it plainly isn’t. Their two billionaire late entrants, Tom Steyer and Michael Bloomberg, aren’t running away with the contest.