“The West Wing” returns for its sixth season tonight at 9 p.m. on NBC, unfortunately going up against Game 7. When we last saw our public policy heroes they were in various levels of distress, dealing with the fall out from a terrorist attack on a visiting American delegation in the Gaza Strip. The car bomb killed Adm. Fitzwallace (sniff) and various members of Congress but spared Congresswoman Wyatt (the mother of Toby’s kids) and…