Landrieu, consultant part ways Foster mum on Terrell By MARSHA SHULER mshuler@theadvocate.com Capitol news bureau Democratic U.S. Sen. Mary Landrieu parted ways with her longtime political consultant Thursday as she faces a bruising political fight against re-election opponent Republican Suzanne Terrell. Meanwhile, Republican Gov. Mike Foster shied away from an endorsement of Terrell, the state's elections commissioner, upset with what he called Terrell's "cesspool" campaign. Landrieu downplayed consultant Ray Strother's departure. "There was a difference. I wanted to strengthen our message, what we have done for Louisiana and want to bring to the state," Landrieu...