MIAMI BEACH, Fla. (AP) — A bipartisan group of mayors from across the country unanimously backed an ambitious commitment for U.S. cities to run entirely on renewable sources such as wind and solar in two decades.

As the U.S. Conference of Mayors wrapped up in Miami Beach on Monday, leaders from more than 250 cities voted on symbolic resolutions pushing back against President Donald Trump on climate change and immigration.

"Mayors have been involved in the frontline of climate and energy issues for so long, but the president's actions have really just ignited the excitement of mayors and citize...