Keystone Pipeline
Environmental groups allege Trump administration approval of the project broke the law.
Opponents quickly outlined plans for lawsuits, political pressure and street action.
The battle now moves to Nebraska, which must approve or reject a Keystone section.
President Trump breathed new life into the project with one of his first executive actions.
WHAT'S HAPPENING
The former Exxon Mobil CEO "will play no role" in deciding whether to grant a key permit to pipeline owner TransCanada.
Like many of you, my mental health has significantly declined since the election.
A parent-to-be grapples with Trump’s memorandum on Keystone XL.
The spill comes amid a heated debate over oil pipeline safety in the United States.
Unions overwhelmingly supported Hillary Clinton. Now that Trump's in office, they have a choice: Resist, or play ball and get what you can.