Once the dust settled, last week’s protest of a Donald Trump rally in Chicago demonstrated a growing nexus between Islamist groups in the United States and the radical leftist “Black Lives Matter” movement.

This rhetoric of unity between these movements was clearly on display at the 2015 joint conference of the 2015 Muslim American Society (MAS) and the Islamic Circle of North America (ICNA). MAS was described by federal prosecutors as the “overt arm” of the U.S. Muslim Brotherhood, and ICNA is recognized as the front for the Pakistani Islamist group Jamaat-e-Islami (JeI) founded by one of the foremost thinkers on modern Jihad, Syed Abul A’la Maududi.

At the event, MAS leader Khalilah Sabra openly discussed the importance of Muslim support for Black Lives Matter, and urged “revolution.” Comparing the situation in the United States to the Muslim Brotherhood-led Arab Spring revolutions, she asked, “We are the community that staged a revolution across the world; if we can do that, why can’t we have that revolution in America?”

CAIR joined other groups named by federal law enforcement as Muslim Brotherhood organizations and lined up behind the Ferguson protests.

In November of 2014, Fox News reported on an effort by CAIR Michigan Director Dawud Walid to link the death of Michael Brown at the hands of police and the death of Luqman Abdullah, a Detroit imam shot during an FBI raid.

Abdullah was described by the FBI as a leader of a nationwide Islamic organization known as “The Ummah,” run by convicted cop-killer Jamil Abdullah Amin. Abdullah’s group engaged in criminal activity in order to raise funds in order for an effort to establish Sharia law in opposition to the U.S. government.

Amin and CAIR have a long association together, with CAIR providing funding for Amin’s legal defense, and issuing numerous press releases in support of the Georgia radical imam and former Black Panther.

While this linkage of Islamist front groups to radical racial politics may seem a relatively new development, the reality is it has been the result of a nearly four decade long effort by Islamist groups. A major thinker on this effort was a Pakistani immigrant and ICNA leader named Shamim A. Siddiqui, who knew JeI founder Maududi personally. Siddiqui wrote his work, Methodology of Dawah Il Allah in American Perspective in 1989.

Siddiqui defined Dawah Il Allah as,

“an organized, a determined and a continuous effort to call the people of the land to the fold of their Creator and Sustainer, Allah (SWT), as priority Number One [of the Da’ee], towards accepting Islam as a way of life and convincing them to the need and urgency of establishing the Deen of Allah in the body politics of the country, with the sole objective to get the pleasure of Allah.” [Emphasis added]

In other words, Siddiqui focused not solely on religious proselytizing, but on the promotion of Islam as a political system. Siddiqui spends much of Methodology of Dawah discussing the efforts being made at recruiting and indoctrinating African Americans, and complained that the “revolutionary” aspect of Islam (his words) was being ignored by those working to convert the African American community.

Ultimately, Siddiqui believed that the Dawah mission depends on merging the grassroots intensity of radicalized African American Muslim communities—like those led by Jamil Abdullah Amin—with the doctrinal and more sophisticated Muslim Brotherhood-led immigrant communities. Siddiqui writes:

“This again, will not be possible without bringing both the immigrant and Afro-American Muslim communities of America on to one platform. The resources of one and the political awakening of the other, when combined together with the Islamic Movement of America, will be able to play miracles…There will be no dearth of resources, both of men and material, at that time. Only the Islamic Movement of America can get this job accomplished.”…