This downtown church is one of 450 houses of worship in the United States that have offered to provide sanctuary or other assistance to undocumented immigrants, according to leaders of the Sanctuary Movement. (Few congregations have the space and fortitude to risk harboring immigrants indefinitely, so others are lining up to contribute money, legal aid, food, child care or transportation.) The congregations joining this network have more than doubled since the election of Donald J. Trump — a rapid rebuttal to Mr. Trump's postelection promise to deport two million to three million unauthorized immigrants who he said have been convicted of crimes.
Protecting immigrants is shaping up to be a priority of the religious left, an amorphous collection of people and groups reflecting many faiths and ethnicities. It has been jolted into action by Mr. Trump's victory and his selection of an attorney general nominee who supports a crackdown on immigrants.