The 15-point drop in his approval rating in today’s Quinnipiac poll is due to the political “senstivity” of the sweeping gun control law approved this month, Gov. Andrew Cuomo said following a meeting with legislative leaders this morning.

Even before the drop, down from a sky-high 74 percent rating following Superstorm Sandy, Cuomo had an inkling that his approval would decrease following the politically charged law being approved.

Cuomo acknowledged to lawmakers in a letter sent this week that they had expended political capital in voting for the law, which updates the state’s assault weapons ban and reduces the number of rounds in a magazine from 10 to seven. In the letter, Cuomo congratulated the legislators’ “political courage” in backing the law.

But Cuomo insisted to reporters today that the approval rating drop had anything to do with the specific content of the measure or the process through which it passed the Legislature through a message of necessity.

Instead, he pointed to a philosophical concern that the law would be part of gradual turn to the government confiscating firearms.

“I know the politics of it,” Cuomo said. ”I understand the sensitivity. I understand the fear. Gun owners hear gun control laws and they’re afraid you’re talking about taking their gun away.”

The poll comes as the state’s main firearms lobby seeks to repeal the law in a legal challenge.

Several Republican lawmakers who voted against the bill are also circulating online to petitions in support of having parts of the measure tossed — a very unlikely scenario.

Cuomo said he understood when he started the effort to tighten the state’s gun control laws that it would likely force him to spend political capital.

But at the same time, he calls the measure “one of the greatest accomplishments” during his tenure as governor, which began in 2010.

“I understand the political desire to sidestep the tough ones,” Cuomo said. “That’s not why we were elected.”