The four U.S. states suing Donald Trump over his 'Muslim ban'

Among those joining her at the announcement will be the MA president of the American Civil Liberties Union, which filed court petitions over the weekend on behalf of people from the seven predominantly Muslim nations who were detained at airports as a travel ban took effect.

On Tuesday New York joined a federal lawsuit against Trump's executive order brought by the American Civil Liberties Union Foundation, the Urban Justice Center and others.

Healey was among 17 Democratic attorneys general who signed a letter on Sunday vowing to "fight this unconstitutional order".

Liberal-leaning Washington state became the first U.S. state on Monday to have its attorney general initiate a lawsuit against the travel ban. Online retail behemoth Amazon, which is headquartered in Washington, pledged support.

San Francisco City Attorney Dennis Herrera filed suit over Trump's order cutting funds to cities with sanctuary policies, a move that could stop the flow of billions of dollars in aid to major US population centers also including New York, Los Angeles and Chicago.

"By filing this suit today we are fighting for the principles that made America a beacon of hope and freedom for the world", Healey said.

MA is home to a long list of colleges and universities, including top institutions like Harvard and MIT, which have significant populations of worldwide students.

MA also joined the growing legal effort to block Trump's order on Tuesday.

The legal maneuvers were the latest acts of defiance against executive orders signed by Trump last week that sparked a wave of protests in major US cities, where thousands of people decried the new president's actions as discriminatory.

Healey, a Democrat who addressed protesters at Boston's Logan Airport on Saturday, said her office would join a suit originally filed on behalf of two Iranian engineering professors at the University of Massachusetts-Dartmouth. "It discriminates on the basis of religion and national origin".

She took to Twitter to declare the travel ban unconstitutional.

Healey was joined at the press conference by several local academic, business, medical and advocacy leaders, including University of MA president Marty Meehan, who said the executive order undermined the university's mission and tweeted his support for the federal challenge.

"Such a travel ban could only cause a chilling effect on talented and dedicated clinicians and care-givers and the related health care community from coming to our country", Sroczynski said.

"Our administration has worked with the Attorney General's office and supports her challenging this action". The order also calls for a 120-day ban on admitting refugees and an indefinite halt on accepting refugees from Syria. It also barred travelers, initially including permanent USA residents, who are citizens of Iran, Iraq, Libya, Somalia, Sudan, Yemen and Syria or dual citizens of those countries and another non-US country from entering America.

  • Rogelio Becker