San Francisco Mayor Ed Lee, left, and City Attorney Dennis Herrera, right, answer questions about a lawsuit against President Donald Trump during a news conference at City Hall Tuesday, Jan. 31, 2017, in San Francisco. San Francisco sued President Donald Trump on Tuesday, claiming an executive order that cuts funding from immigrant-protecting "sanctuary cities" is unconstitutional and a "severe invasion of San Francisco's sovereignty." The federal government cannot "put a gun to the head of localities," City Attorney Dennis Herrera said, arguing that the order violates states' rights and the law. (AP Photo/Eric Risberg)
The city of San Francisco is mourning the death of Mayor Ed Lee. The mayor’s office has confirmed that Lee died early this morning at Zuckerberg San Francisco General Hospital at the age of 65. Per city policy, San Francisco Board of Supervisors President London Breed has been sworn in as the acting mayor. The last time a supervisor had to step in when the mayor died in office was 39 years ago, when Diane Feinstein became mayor after the assassination of George Moscone.