Warren staffer Hamza Abdelgany invited the senator to speak at a Boston Islamic Center linked to several major terrorism cases.

Sen. Elizabeth Warren said she made an ill-advised appearance at a Boston mosque linked to several major terrorism cases at the request of an office aide who attends the radical mosque.

The Massachusetts Democrat said she agreed to speak Sunday at the Islamic Society of Boston Cultural Center at the urging of staffer Hamza Abdelgany, who is a member of the mosque, which has graduated no fewer than 13 terrorists and recently was caught on video defending many of the terrorists, even after they were convicted in federal court.

Warren spoke before the congregation for several minutes chiefly to complain about “anti-Muslim hate” allegedly inspired by the election of GOP President-elect Donald Trump.

Charles Jacobs, founder of Boston-based Americans for Peace and Tolerance, told CJ that he is “very concerned” that a member of a mosque that supports and even raises money for the legal defense of known terrorists has such political clout. He said that Warren’s ill-considered visit bestowed undue legitimacy on ISB.

ISB operates two mosques: one in Roxbury, where the so-called “interfaith” event attended by Warren was held, and the other in Cambridge, where several terrorists and terrorist supporters have worshipped, including:

Boston Marathon bombers Dzhokhar Tsarnaev and Tamerlan Tsarnaev;

Aafia Siddiqui, aka Lady al-Qaida, who raised money for the terror group in area mosques and is serving an 86-year federal sentence for trying to murder a US Army captain in Afghanistan, where she was captured with plans to carry out a chemical attack on New York City;

ISB imam Abdullah Faaruuq, who was heard on tape urging Boston Muslims to “pick up the gun and the sword” to defend Siddiqui during her 2010 trial.

Tarek Mehanna, who in 2012 got 17 years in federal prison for conspiring to use automatic weapons to murder shoppers in a suburban Boston mall, as well as for conspiring to aid Al Qaeda;

Ahmad Abousamra, an indicted terrorist co-conspirator of Mehanna who fled to Syria in 2006 where he resurfaced as a top ISIS propagandist and was added to the FBI’s Most Wanted Terrorists list in 2013, where he remains today.

ISB congregant Rezwan Ferdaus, who in 2012 got 17 years in federal prison for plotting to attack the Pentagon and US Capitol with remote-controlled airplane bombs.

ISB major donor Oussama Ziade, who was indicted in 2009 for dealing with terrorist funds and is now a fugitive living in Lebanon.

ISB co-founder Abduraham Alamoudi, who was sentenced in 2004 to 23 years in prison for plotting terrorism and identified by the US government as a top Muslim Brotherhood figure as well as a key al-Qaida fundraiser in America.

ISB founding trustee Yusuf Qaradawi, who was placed on the US terror watchlist after calling for violent jihad against US troops in Iraq and is currently the subject of an Interpol arrest warrant on charges of incitement to murder.

Jamal Badawi, another former trustee who in 2007 was named an unindicted co-conspirator in a plan to funnel more than $12 million to Palestinian suicide bombers.

ISB leadership also includes Abdul-Malik Merchant, an associate imam who recently was forced to apologize to the Jewish community for posting anti-Semitic posts on social media.

ISB member Tamerlan Tsarnaev, who was caught on surveillance videotape planting a bomb along the Boston Marathon route, became an angry jihadist after joining the mosque. According to his ex-girlfriend, “One minute he was a normal guy, the next minute he is watching these crazy Muslim videos.”

In 2011, ISB hosted an event in support of no fewer than 22 terrorists who were convicted of providing material support for al-Qaeda, Hamas, Palestinian Jihad and Pakistani terrorist groups — including Siddiqui, Alamoudi and Mehanna. During the event, which was caught on video, relatives of the terrorists bashed the FBI, the Justice Department and the US government; and at least one speaker called for violent jihad against the US.

Still, Warren stood where they stood and bashed the president-elect.

“I am very concerned about how Donald trump is beginning to define his administration with the people he personally is picking to lead this country,” Warren said, while claiming that “since the election attacks on racial and religious groups have skyrocketed.”

“Now is a time when we must be willing to say loud and clear there is no room for bigotry anywhere in the United States of America — none,” she said. “An attack on one of us is an attack on all of us, and we will fight back against discrimination whenever and wherever it occurs.”

Six prominent religious leaders fired off a letter criticizing Warren for agreeing to appear at the mosque, arguing she provided “political cover to one of the most intolerant jihadist mosques in America.”

Warren was invited by ISB member Hamza Abdelgany, a staff assistant working out of Warren’s Quincy, Mass., office. Abdelgany was involved with the Muslim Students Association while attending the University of Massachusetts at Boston. The US government says MSA is a front group for the radical Muslim Brotherhood, which supports violent jihad and conspires to one day bring the US and other Western nations under Islamic rule.

“The Muslim Brotherhood was founded in Egypt … Its ultimate goal is the creation of a global Islamic State governed by Sharia law,” U.S. Attorney James T. Jacks said in a 2008 court filing related to a major terrorism case. “Muslim Brotherhood members first migrated to the United States in the 1960s, where they began their grassroots work on campuses through an organization called the Muslim Students Association.”

ISB is run by the Muslim American Society, a known Muslim Brotherhood front group which also runs the so-called “9/11 mosque” in the Washington area, Dar al-Hijrah Islamic Center.

Ilya Feoktistov, director of research for Americans for Peace and Tolerance, said that by ignoring ISB’s well-documented ties to terrorists, Warren is serving as an “enabler” of jihad.