; or (2) directly or indirectly, materially engages in a significant transaction with any person described in subsection (b). (b) Person described (1) In general A person described in this subsection is a foreign person that the President determines— (A) is a senior member of Hamas, the Palestinian Islamic Jihad, or any affiliate or successor thereof; (B) is a senior member of the Al-Aqsa Martyr’s Brigade, Lion’s Den, or any other entity that the President determines is part of the terrorist infrastructure in the West Bank and Gaza; (C) is a senior member of a foreign terrorist organization designated pursuant to section 219 of the Immigration and Nationality Act ( 8 U.S.C. 1189 ) whose members directly or indirectly support any of the activities of, knowingly engage in a significant transaction with, or provide financial or material support for Hamas, the Palestinian Islamic Jihad, any affiliate or successor thereof, or any person described in subparagraph (A) or (B)