Looks like legislative Democrats have really struck a nerve with their own party leader, Gov. Andrew Cuomo.

The governor now insists he wasn’t bullying anyone. But how else to explain his over-the-top threat to investigate “every state contract, every member-item contract” if lawmakers dare look into his economic-development contracts?

This, after the new heads of the Senate and Assembly investigations committees said they would conduct full-time oversight into the executive branch.

Such active legislative oversight “has not happened in a very long time, if ever,” said Senate committee chair James Skoufis (D-Hudson Valley). And it’s long overdue.

But not to Cuomo — who throws a fit when anyone he can’t control takes a close look at state business.

That’s why he pushed the then-compliant Legislature back in 2011 to strip state Comptroller Tom DiNapoli of his authority to review in advance construction projects by SUNY and its nonprofit subsidiaries.

That’s why he abruptly pulled the plug on his own anti-corruption Moreland Commission after members decided to take their jobs seriously and investigate the gov’s office.

And that’s why corruption flourished in Cuomo’s signature economic-development projects, sending some of his closest aides to prison and costing New Yorkers billions.

Besides, as Skoufis notes, the governor’s agencies already review all grant applications, so “if he wants to inspect them further, he can have it.”

But you’ve got to wonder, as does Skoufis, just what Cuomo’s afraid of. As his Assembly counterpart, Thomas Abinanti (D-Westchester), said: “I haven’t even taken the position yet and he’s firing a missile.”

Either way, says Skoufis, “I look forward to chairing a very active investigations committee.” So should all New Yorkers — especially if it keeps Andrew Cuomo up nights.