Articles by Nina Lakhani, The Guardian
Sharon Lavigne, a retired special ed teacher, led a successful campaign to block construction of a toxic plant in Louisiana.
Border communities, Native Americans and experts want the president to reverse damage done by construction under Trump.
Tribes and environmentalists hail decision to cancel Keystone XL pipeline but call on president to go further.
The 60-year-old congresswoman will be the first Native American cabinet secretary next month when she takes over at interior.