What is the fine-grained topic of the following text: In May 2017, Kushner Companies received a subpoena from the commission concerning the program known as EB-5, which allows foreign nationals to obtain green cards if they invest at least $500,000 in a US development project that would create jobs, The Wall Street Journal said. Only return the topic.
Kushner Companies' subpoena related to the EB-5 investment program