Senate Republicans threatened to investigate Clinton officials for use of rendition if Democrats insist on investigating Bush officials for authorizing torture. Sen. Lamar Alexander and Sen. Richard Shelby both indicated that they would push for an investigation into rendition during a Senate hearing Thursday.

"If we're going to ask lawyers who were asked to give legal opinions, we're going to investigate them, jeopardize their career, second guess them, look back -- then where does that stop? I mean, do we not also have to look at the people who asked for those techniques, the people who approved those techniques, members of congress who knew about and encouraged techniques perhaps? Or, in your case, in the Clinton administration. We don't know what the interrogations were then. Perhaps you do and the question will be 'Did you approve them?'" Alexander warned Holder.

Author Brandon Friedman of joined MSNBC's Keith Olbermann to discuss the Republicans' threat.

This video is from MSNBC's Countdown, broadcast May 7, 2009.

Download video via