The Senate narrowly rejected legislation to authorize the Keystone XL pipeline on Tuesday, handing a defeat to the oil industry and dealing a major blow to Louisiana Democrat Mary Landrieu, who staked her political career on the outcome. The Senate voted 59-41 for the legislation, falling one vote shy of the 60 needed for passage under the deal bringing it to the floor. But Keystone supporters insisted the defeat would be short-lived. Republican leaders are vowing to try again after they take over the chamber in January — when they will have more than enough votes to get a measure...