President Barack Obama is bringing 11 relatives of those killed in the shooting at Connecticut´s Sandy Hook Elementary School to Washington on Air Force One on Monday so they can personally encourage senators to back gun legislation that faces tough opposition. A nonprofit organization that works with the families, Sandy Hook Promise, said that after Obama´s speech on gun control in Hartford, he is flying with relatives of seven children and one staffer killed during December´s massacre at the school. The White House says Obama is going to argue that lawmakers have an