Linda Sarsour is a racial justice and civil rights activist and every Islamophobe’s worst nightmare.
In CAIR's own words:
"The Council on American-Islamic Relations (CAIR) was created as an "organization that challenges stereotypes of Islam and Muslims" (CAIR letter to Vice President Gore, 10/06/1995), a "Washington-based Islamic advocacy group" (Press release, 8/28/1995) and an "organization dedicated to providing an Islamic perspective on issues of importance to the American public" (Press release, 12/13/1995). Prior to establishing CAIR, its founders observed that "the core challenge [in America], that of stereotyping and defamation, was having a devastating effect on our children and paralyzing adults from taking their due roles in civic affairs" ("The Link," a newsletter published by Americans for Middle East Understanding, February-March 2000). Within that understanding, they formed CAIR to challenge anti-Muslim discrimination nationwide.
Since being established in 1994, CAIR has a successful track record in its defense of civil liberties and tolerance. It is frequently seen as the "go-to" organization when bias is directed against Muslim individuals or institutions. Its status as the most frequently quoted American Muslim organization in our nation's media also suggests success in "providing an Islamic perspective on issues of importance to the American public."
Here is the link to read the complaint that CAIR filed.