States and cities dominated by Democrats are preparing to push back against some policies that could be on President-elect Donald Trump's to-do list. A look at some of their concerns:
Trump said during the campaign that he wanted to deport people who are in the U.S. illegally. More recently, he has focused on those convicted of crimes. He puts that figure at between 2 million and 3 million, though the government has said the actual number is smaller.
California, Rhode Island, Vermont and Connecticut and scores of cities have instituted rules that limit cooperation when federal authorities ask them to detain people who are in the country illegally. Trump has pledged to cut federal funding for such places.
So far, many officials, including the mayors of the nation's two biggest cities, New York and Los Angeles, have reaffirmed their stands. Chicago, the third-largest city, has launched a legal fund to protect immigrants.
Trump has said the country should have a registry for Syrian refugees entering the country. Whether he wants a registry for all Muslims in the U.S. has been less clear.
This week, a California state senator introduced a bill that would prohibit state agencies from providing information about a person's religious affiliation to the federal government if it was to be used for compiling a religious registry.
Trump has called for keeping some parts of Obama's Affordable Care Act while undoing others.
The law, along with an expansion of Medicaid in many states, has been credited with providing health coverage to millions of Americans but is blamed for raising costs on insurers and consumers. If federal support is withheld, states that want to keep the programs could see their costs balloon.
During the campaign, Trump called climate change a hoax and said he wanted to drop the U.S. from the Paris international climate agreement. His stance appears to have softened since the election. Trump now says he has an "open mind" about whether to stick with the agreement to reduce carbon emissions.
He also said he supports opening more federal land to coal mining and oil and gas drilling, and rolling back the regulatory role of the Environmental Protection Agency.
Democrats such as Los Angeles Mayor Eric Garcetti contend cities and states should have the autonomy to maintain environmental policies regarding electrical power, building codes, water conservation and air pollution.
Trump has been an outspoken supporter of the Second Amendment. Gun-rights activists want him and Congress to eliminate gun-free zones, including those at schools, reduce requirements for background checks and ensure that permits to carry concealed handguns in any state are recognized across the country.
Gun-control advocates say states should be able to pass their own firearm restrictions and should not be forced to recognize out-of-state concealed carry permits.