Now that Congress has recessed, and since the conventions aren’t for a couple of weeks, Thursday’s The Situation Room turned back to the "hot" issue of what many liberals are calling on congressional Democrats to do: arrest and lock-up Karl Rove for his failure to testify on the issue of the firing of U.S. attorneys in late 2006. CNN correspondent Jim Acosta, as part of a report on this possible move by the Democrats, conducted a search for the supposed jail inside the U.S. Capitol. He also addressed the little-used power of the legislature to arrest and try government officials...