SAN FRANCISCO (MarketWatch) -- New York State Attorney General Eric Schneiderman on Sunday said he filed suit against Donald Trump on the grounds of "engaging in persistent fraudulent, illegal and deceptive conduct in connection with the operation of Trump University." The lawsuit was also filed against the Trump Entrepreneur Institute, formerly called Trump University LLC, and Michael Sexton, former President of Trump University. Schneiderman alleges that between 2005 through 2011, Trump University "operated as an unlicensed educational institute that promised to teach Donald Trump's real estate investing techniques to consumers nationwide but instead misled consumers into paying for a series of expensive courses that did not deliver on their promises."