Associated Press: Struggling to seize control of a disastrous oil spill on his watch, President Barack Obama is rolling out tougher rules for oil rigs, accepting questions about his own leadership and heading back to the Gulf Coast to reassure the country of every effort to “put a stop to this thing.” Even as the White House insists it has been engaged in halting the crisis since it began, Obama is raising his public profile in an attempt to show he is in command. He has been pounded not just by …