Elected officials and other groups representing those living below the troubled Oroville Dam have asked the Trump administration to hold off on renewing its 50-year license, saying the federal government should at least know why the spillway broke in half last winter before signing off. On Wednesday, the dam’s owner, the California Department of Water Resources, sent a letter to the Federal Energy Regulatory Commission saying it was past time to renew the dam’s license, an effort that has been on hold for the past 11 years.