WASHINGTON—President Trump plans to sign an executive order on Monday escalating his battle against Democratic-led states and cities that don’t fully cooperate with federal immigration authorities, a key barrier to the mass deportations he has promised.

The order, she said, will direct the Attorney General and Secretary of Homeland Security to publish a list of state and local jurisdictions that “obstruct the enforcement of federal immigration laws.”

President Donald Trump is expected to sign an executive order Monday afternoon, cracking down on Democratic-led sanctuary cities as he approaches his 100th day in office. The order will direct Attorney General Pam Bondi and Homeland Security Secretary Kristi Noem to create a list of the cities and states not complying with Trump’s effort to