New York Times: President Obama made his fourth trip to the battered Gulf Coast on Monday, assuring residents and state officials in Mississippi that the federal government will push hard to make sure that the British oil giant BP will reimburse businesses and individuals for lost income from the oil spill. Mr. Obama, after meeting with Gov. Haley Barbour of Mississippi and Gov. Bobby Jindal of Louisiana, said that one of the most important things that ordinary Americans could do to help residents of …