Mohammad Baqer Saad Dawood al-Saadi allegedly pledged thousands of dollars to someone he thought would carry out an attack against a synagogue in New York.
The Trump administration's top counterterrorism official Joe Kent announced his resignation Tuesday over opposition to the Iran war.
The FBI conducted at least three controlled detonations at a Public Storage in Bucks County connected to the alleged terror plot in New York.
Emir Balat and Ibrahim Kayumi are awaiting arraignment Monday on charges that include attempting to provide material support to a terrorist organization.
The jury needed little more than two hours to convict Asif Merchant, 47, of murder-for-hire and terrorism charges that carry the possibility of life in prison.
The FBI said it is investigating a possible terrorism motive in a mass shooting early Sunday outside a bar in Austin, Texas.