State's watchdog found the department's vetting was "effective."
A Nebraska judge's ruling could delay an already drawn-out process.
Obama jokes his fondness for Canada may wane in coming days.
White House refuted comments from former Energy Secretary Chu.
Oil began flowing through the pipeline's southern leg on Wednesday.
Tom Donohue said regulations and delays are tempering the domestic energy boom.
Billionaire Tom Steyer plans to renew his fight against Keystone XL in Washington.
Alberta Premier Alison Redford will make the rounds in Washington, D.C., to lobby for White House...
Opponents of the Keystone XL pipeline project heckled President Obama during a healthcare speech...