AP Photo
FILE - This May 25, 2017 aerial file photo shows the Standard Oil Refinery in El Segundo, Calif., with Los Angeles International Airport in the background and the El Porto neighborhood of Manhattan Beach, Calif., in the foreground. California Attorney General Xavier Becerra announced, Thursday, Dec. 7, 2017, that California is among fourteen states and the District of Columbia that are suing the Trump administration over what they say a failure to enforce smog standards. (AP Photo/Reed Saxon, File)