Schumer prostrated himself to the far left's ill-conceived government shutdown this fall. REUTERS

Every child knows the fable of the scorpion who swears not to sting the frog who ferries him across a river — but unsheathes his poison at the end of the journey.

“I thought you promised not to sting me!” the incredulous frog exclaims as he perishes.

“Well, you knew I was a scorpion,” the other responds.

Sen. Chuck Schumer seems unaware of the tale — and its lesson.

Leftist revolutions tend to eat their own: The French Revolution’s Maximilien Robespierre met the Jacobins’ guillotine, and Josef Stalin murdered the onetime allies who tried to moderate his fervor.

Yet Schumer prostrated himself to the far left’s ill-conceived government shutdown this fall.

After resoundingly losing t

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