Editor's note: The Standing Rock Sioux tribe issued a statement that the U.S. Army Corps of Engineers has decided to not approve an easement allowing the Dakota Access pipeline to cross under Lake Oahe. The announcement comes after months of demonstrations near Cannon Ball, N.D., that have led to arrests and several violent confrontations between law enforcement officers and protesters. A part of the Energy Transfer Partners-owned pipeline was set to run under the lake on the tribe's reservation, and protesters say it will threaten water resources and sacred sites. State officials had argued it was too late to reroute the project. In November, the Obama administration delayed a decision on whether pipeline construction will go forward, adding that it will hold more talks with tribal leaders. In a statement issued Sunday, the Army's Assistant Secretary for Civil Works Jo-Ellen Darcy said she based her decision on a need to explore alternate routes, adding "it's clear that there's more work to do." - Stephanie
White House on anniversary of San Bernardino attack: 'The brutality of the attack's perpetrators could not have been in starker contrast to the selflessness and generosity that characterized those taken from us' - statement
The Executive Office of the President (EOPOTUS or EOP) consists of the immediate staff of the current President of the United States and multiple levels of support staff reporting to the President. The EOP is headed by the White House Chief of Staff, currently Denis McDonough. The size of the White House staff has increased dramatically since 1939, and has grown to include an array of policy experts in various fields.