New York Times: As Senators began debating the fate of the Keystone XL pipeline ahead of a Tuesday night vote on the project, it became clear that Republicans and Democrats viewed the Louisiana Senate seat, rather than the oil pipeline, as the real prize in the fight. Senator Mary L. Landrieu, Democrat of Louisiana, faces a runoff for re-election Dec. 6 against Representative Bill Cassidy, a Republican. Both have brought up bills aimed at approving the pipeline in hopes of winning new votes in their state, whose...