THE EVITABLE CANDIDATE: Clinton moves goalposts again; girds for New York battle.

When Hillary Clinton lost the New Hampshire primary to Bernie Sanders in February, Robby Mook, her campaign manager, took the long view and declared the nomination would “very likely be won in March, not February.”

The campaign is now taking an even longer view, with April now being the month they hope to put Sanders away. It’s an optimistic projection, with Sanders support far from fading and the Vermont senator vowing to compete in primaries and caucuses through June 7 in California, and possibly to the Democratic convention.

Even though Clinton aides say her lead in pledged delegates is “almost insurmountable,” they are now doing something they never expected: Investing considerable time and money to the April 19 New York primary.

Who could have foreseen Clinton having trouble beating back a challenge from a male Senator clobbering her from the left?