REFILE - ADDITIONAL INFORMATION San Francisco City Attorney Dennis Herrera, third from left, with Jesse Smith, Chief Assistant City Attorney, Ron Flynn, Chief Deputy City Attorney and Mayor Ed Lee, announces he has filed a lawsuit against President Donald Trump for his unconstitutional executive order targeting sanctuary cities during a news conference at city Hall in San Francisco, California, U.S., January 31, 2017. REUTERS/Kate Munsch
BOSTON/SAN FRANCISCO (Reuters) - Legal challenges to President Donald Trump's first moves on immigration spread on Tuesday, with three states suing over his executive order banning travel into the United States by citizens of seven majority-Muslim countries.
Massachusetts, New York, Virginia and Washington state joined the legal battle against the travel ban, which the White House deems necessary to improve national security.
