To mark the beginning of his tenure, liberal and labor union tool Mayor Bill DeBlasio started by waging war on low-income charter-school students:

New York City Mayor Bill de Blasio is blocking the opening or expansion of multiple charter schools that were approved last year.

Included were three Eva Moskowitz-run Success Academy schools, approved by former Mayor Mike Bloomberg, were to operate within existing public school buildings beginning in the fall.

The de Blasio administration, however, conducted a review that resulted in the charter schools being rolled back.

He’s faced backlash for these decisions, and now he’ll face lawsuits:

Mayor de Blasio is getting hit on Monday with three new lawsuits by charter-school supporters, his traditional enemies — just as his pals who despise the popular institutions are threatening him with legal action for offering a compromise.

The Success Academy, a charter-school network run by his nemesis Eva Moskowitz, is filing a federal civil-rights lawsuit to overturn his decision to disallow its Central Harlem middle school from sharing space with a public school.

Opening a second front, Success officials are going to Albany to file papers with state Education Commissioner John King to try to reverse City Hall’s decision to keep two new Success Academy elementary schools from opening.

One is scheduled for shared space at Murry Bergtraum HS downtown and the other at August Martin HS in Queens.

All three co-locations had been approved last year by then-Mayor Mike Bloomberg.

For the children, of course, in the deBlasio administration:

Schools Chancellor Carmen Fariña says charter- school students she booted from city-owned space in Harlem “are on their own” and can always go back to regular public schools.