WASHINGTON — HILLARY CLINTON is the Democratic nominee.

Really.

Just ask her.

She should have been able to finally savor shattering that “highest, hardest glass ceiling” — the one she gloried in putting 18 million cracks in last time around — when she attends her convention in Philadelphia in July.

Instead, she is reduced to stomping her feet on CNN, asserting her dominance in a contest that has left her looking anything but dominant. Once more attempting to shake off the old socialist dude hammering her with a sickle, Clinton insisted to Chris Cuomo on Thursday: “I will be the nominee for my party, Chris. That is already done, in effect. There is no way that I won’t be.”

It’s a vexing time for the Clintons. As Bill told a crowd in Fargo, N.D., on Friday, it’s been an “interesting” year: “That’s the most neutral word I can think of.”

After all, why should Bernie Sanders get to be the Democratic nominee when he isn’t even a Democrat? And how is Donald Trump going to be the Republican nominee when he considers being a Republican merely a starting bid?