Senate Judiciary Chairman Pat Leahy, D-Vt., said that National Security Agency officials have “gotten too carried away with what is technologically possible” with respect to security, adding that he fears the agency is “collecting [information] for the sake of collecting.”

“In many ways, the NSA has gotten too carried away with what is technologically possible, not what’s best for the security of the United States,” Leahy said during a Newsmakers interview that aired Sunday. “I have to be convinced we’re not just collecting for the sake of collecting.”

Leahy said that President Obama has not pressured him not to protect the program. “[I] agree he should have all the tools [available for national security] — within the framework of our Constitution,” the senator said.

Obama tends to dislike lawmakers reviewing the constitutionality of his actions, as he made clear to the New York Times while discussing the push-back against his delay of the employer mandate in Obamacare.

“I’m not concerned about their opinions — very few of them, by the way, are lawyers, much less constitutional lawyers,” the president said.