Two Republican Senators on the Senate Intelligence Committee have joined Democratic Senators in calling for a Senate investigation of the Bush administration's domestic NSA spying operation, according to this Reuters story by Adam Entonus.
The significance of this is that Republicans on Senate Intell. are breaking party ranks in calling for the congressional probe, and also defying the White House which opposes any inquiry.
Joining the Democrats were Republican Senators Olympia Snowe of Maine, and Chuck Hagel of Nebraska. The proposed congressional probe would be a joint inquiry by both the Senate Judiciary and Intelligence committees.
So it Passed the Senate
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