The Rachel Maddow Show has obtained, exclusively, a Department of Homeland Security intelligence assessment document. The document, from the Office of Intelligence and Analysis, makes the case that most foreign-born, U.S.-based violent extremists are likely not radicalized when they come to the U.S., but rather become radicalized after living in the U.S. for a number of years.

The document follows another piece of research (pdf) from Homeland Security that undercut President Trump’s rationale for a travel ban as a means of keeping violent extremists out. On Friday, the Associated Press published an analysis from Homeland Security that said citizenship in any given country – including the seven countries listed in the executive order – is likely an unreliable indicator of whether someone poses a terrorist threat.

The new assessment, obtained by the Rachel Maddow Show and dated March 1, tracks 88 violent, foreign-born extremists in the United States. More than half of them had been in the U.S. more than 10 years before they were indicted or killed.

Homeland Security tonight has confirmed the authenticity of the document. The department says production of it began in August 2016, and that it likely would have reached the White House. We have asked the White House for comment tonight. They have not responded.

Read the document below:

(Scribd pdf link here)