File photo shows former US Senator and actor Thompson listening to US President Bush speak in Washington

 
File photo shows former US Senator and actor Thompson listening to US President Bush speak in Washington
Former U.S. Senator and actor Fred Thompson listens to U.S. President George W. Bush speak at the National Catholic Prayer Breakfast in Washington in this April 13, 2007 file photo. It could be the defining role of Thompson's varied career -- the reluctant politician who saves a foundering party, restores its conservative principles and keeps it in the White House. For Thompson, the drama is real enough, even if the final act is uncertain. The former Tennessee senator, Watergate counsel and star of films like "The Hunt for Red October," has been exploring a potential 2008 Republican presidential run and is expected to make his decision known soon. REUTERS/Larry Downing/Files (UNITED STATES)