Sen. Rand Paul (R-Ky.) expressed deep concerns Sunday about the National Security Agency's surveillance efforts, triggering pushback from Rep. Peter King (R-N.Y.).

"I think the constitutionality of these programs needs to be questioned," Paul said on "Fox News Sunday." Paul has been an outspoken critic of the NSA's phone record surveillance.

The Washington Post reported last week that the NSA broke privacy rules or went beyond its legal authority thousands of times each year since 2008.

"I think we need more people doing specific intelligence data on people who we have suspicion of, rather than doing it on suspicionless searches of all American phone calls," said Paul.

King said on the same program that he strongly disagrees with Paul's criticism of the NSA.

"I totally disagree with what Sen. Rand Paul said. That was just a grab bag of misinformation and distortion coming from him," King said.