The OPT visa was created by President George HW Bush in 1992 as a 12 month program. It allowed international students to work in their field of whatever their major is. Obama changed it to a 3 year visa. OPT visa workers don't have to pay FICA taxes, so employers save 7.65% The scam is for people from India (and other countries) to come to the USA on a student visa, start working on an OPT visa, then hunt for an H1B sponsor and convert to a long term H1B visa. There is no cap on the number of OPT visas. President Trump could end the OPT visa loophole at any time. President Bush started it, without authorization from Congress. President Trump can end it.(Wall Street Mav)