Story highlights Sen. Ted Cruz said a new law he supported increased the number of phones which can be tracked by the government

Shortly after Cruz mentioned the numbers, a Burr spokeswoman suggested he may breached the confidentiality

Washington (CNN) Senate Intelligence Committee leaders said Wednesday they aren't investigating whether Texas Sen. Ted Cruz publicized classified information about government phone tracking during the CNN Republican presidential debate.

"The Committee is not investigating anything said during last night's Republican Presidential debate," Senate Intelligence Committee Chairman Richard Burr, R-North Carolina, and Vice Chairwoman Dianne Feinstein, D-California, said in a statement.

Earlier Wednesday, Burr told reporters his staff was reviewing comments made by Cruz about the USA Freedom Act.

"I'm having my staff look at the transcripts of the debate right now. I didn't watch it," said Burr, a North Carolina Republican. "Any time you deal with numbers -- and I think it dealt with numbers -- the question is, is that classified or not, or is there an open source reference to it? So it's not as clear as just reading what he said. We've got to search all sorts of media outlets to see if anybody had reported that number independently."

As he was battling with Florida Sen. Marco Rubio on Tuesday night over who was better at helping law enforcement track down terrorists, Cruz defended himself by saying the USA Freedom Act, which he supported, increased the number of phones that can be tracked by the government.

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