 PLOT: SPOILER: In the first level of the Rise of the Empire  campaign, the player is told by the retired clone trooper that they  were covertly seeking an experimental power source to be used for  the chancellors superlaser, unbeknownst to the suspecting Jedi.  As he is both leader of the republic as the chancellor, and of the  CIS as Darth Sidius, he would have little trouble in obtaining the  power source, and, in fact, should probably have had knowledge of  it. The chancellor is a very powerful Sith and would not have  jeopardized his plan any more than it needed to by sending the  troops on an unnecessary mission.