(AP) — Six years ago, Sen. Mary Landrieu's effort to draw billions of dollars in federal disaster aid to Louisiana after Hurricane Katrina helped keep her in office for a third Senate term. [...] Landrieu has lost much of that post-Katrina goodwill. "Mary Landrieu never stopped fighting for the people of Louisiana when we needed her the most, when we were on our knees, when we were going through the rubble of our lives, while we were picking through the smelly debris that destroyed our homes and our livelihoods," state Rep.