Updated Wednesday 5/29 at 9:05 a.m. ET

(CNN) - The Republican-controlled House Judiciary Committee is looking into whether Attorney General Eric Holder lied under oath earlier this month when he said he wasn't involved in the "potential prosecution of the press," two Republican committee sources confirmed Tuesday.

Though he testified in a May 15 Congressional hearing that he's "never heard of" the press being potentially charged for obtaining leaked material, it has since been reported that he signed off on the Justice Department's decision to seek a search warrant in 2010 for Fox News reporter James Rosen's private e-mails as part of a leak probe.
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