The prosecutor who prosecuted the “blind sheikh” (ringleader of 1st WTC bombing 93) wrote a very detailed book outlining the large scale efforts in the US regarding sharia. It is called The Grand Jihad by Andrew McCarthy.
He had access to huge amounts of classified info over the years because of his job. He details the ways in which the Muslim Brotherhood has set up numerous front organizations & linked up with other “moderate” groups to push and agitate for separate rights. They use a process called dawa, or soft jihad. One of their front groups is CAIR, called an indited co-conspirator in the Holy Land Foundation trial. They are the main media relations arm & he shows a memo by the Brotherhood specifically talking about creating them. Since they were created, they became the go to group for media to get the islamic perspective of everything, which of course, if all our fault. It is mainly due to them but others, that we have this myth of “Islamophobia” and the idea that reporting honestly on all things islam is tantamount to hate speech.They have been pushing the extreme deference to all things islam in the public square by blaming everything on bigotry, no matter how valid.(This is a big tenant of sharia, no one, especially nonmuslims are allowed to say anything “offensive” about the profit, islam, the koran or sharia. Offensive in the eye of the beholder because it also includes revealing actual teachings & actual statements made by actual people) They say themselves that they picked up that trick from the left & groups like Sharpton’s.
There is an estimation by a “moderate” group that at least 80% of the mosques in the states have been taken over by the “radicals”. The US actually HELPS in this effort because we have special visas for religious leaders, whom we do not vet nor follow up on (the blind sheikh comes to mind) CAIR worked to keep any investigations on mosques from happening much because they go to the media claiming bigotry, so we stop.
The saudis have funded thousands of mosques around the us with the stipulation that they teach the salafist point of view. That is the notion of returning to the “pure” islam of the very beginning. Meaning all that stuff in the koran is what they REALLY believe in. Any other interpretation of the koran is emphatically not allowed.They have also established schools. One of which is in VA & their very 1st valedictorian went on to be arrested for attempting to commit a terrorist act.
They have actually created enclaves within the US.Very much like the mormon ones people were so freaked out about. There is at least one in upstate NY that has its own weapons training facility that does not allow outsiders but claims to be a business to provide jobs for the residents. Within these mosques & communities it is believed that the US does not have jurisdiction over them because they say they only recognize sharia as the only legitimate law of the world. It has been openly stated that if a law of a state is in conflict with sharia, they teach to ignore the “unjust” law. Since sharia cannot be unjust as it comes from God, that appears to mean the secular government.
Within the universities there is another front group for the Brotherhood. The MSA, Muslim Student Association. These are the students you see openly espousing antisemitism because of “Palestine” . They have nearly 600 chapters in the US & Canada. These are the ones who shout down or outright shut down, many speakers, programs etc they deem as “antiislamic” of “islamophobic” “zionist” any other name you can think of. Their freedom of speech is used to silence those they dont want to speak (or have anyone hear). They are the ones who get universitites to use tax payer money to install footbaths, with the ridiculous notion that they can be used by everyone.

Not isolated events.
They graduate & move on to the Muslim American Society of MSA. They are the ones agitating for special rights (a common theme) I believe they were the ones behind the “flying imams” & the cab drivers demanding special right to not carry dogs or alcohol, footbaths etc. They are heavily involved in the Somali muslim enclaves of Minneapolis (surprise! where the imams & cabbies are!) and there have been numerous cases of Somali young men being recruited for al shabab & some going back to islam for jihad.
There is A LOT more. See also Willful Blindness by Andrew McCarthy & the Stealth Jihad by Robert Spenser. See also Steven Emmerson, jihad expert who has spent decades working for our govt on this subject.