Trump's orders on immigration face new legal challenges in U.S.

By Scott Malone and Dan Levine BOSTON/SAN FRANCISCO (Reuters) - Legal challenges to President Donald Trump's first moves to restrict the flow of people into the United States spread on Tuesday as Massachusetts and San Francisco sued to challenge two of his early executive orders. Massachusetts on Tuesday joined the legal battle against Trump's order banning travel into the United States by citizens of seven Muslim-majority countries, a move the White House described as necessary to improve natio