US Muslim leaders filed suit against President Donald Trump today over an immigration order that they said was a "fear-mongering" attempt at keeping members of their religion out of the country.<br/>'<br/>Nihad Awad, executive director of the Council on American-Islamic Relations, joined 26 others as plaintiffs in the lawsuit alleging that Trump's temporary ban on immigrants from seven Muslim-majority countries was in fact a "Muslim exclusion order" that violates the US constitution's religious freedom protections.<br/>''<br/>Trump's executive order will lead to "the mass expulsion" of both immigrant and non-immigrant Muslims, the suit, filed in the district court in Alexandria, Virginia, alleged.'<br/>'<br/>Lawyers said the order violates the US Constitution's protections of religious freedoms and the "establishment clause," which bans the government from making laws that favor or discriminate against specific religions. <br/>