Keystone XL Pipeline

The pipeline's fate looms large in Washington. But for people living in Keystone XL's proposed path, the project will alter livelihoods and legacies — for better or worse, depending on whom you ask.

The long-delayed project is a jobs generator to some and an ecological disaster to others. Ahead of a key Senate vote, we revisit what the Keystone XL pipeline would do and why it's so contentious.

From a Hail Mary pass on the Keystone pipeline aimed at saving Sen. Mary Landrieu, D-La., to attempts to block White House appointments and executive actions, the next month in Congress could be busy.