We've sued out-of-state power plants that are polluting our air and led a coalition of attorneys general from Connecticut, Delaware, Maryland, and Massachusetts against efforts in the U.S. House of Representatives to remove critical environmental regulations that protect New York communities from toxic pollution.

These facts are clear: Trump University was an unlicensed enterprise promising students that they would become wealthy by learning Trump's real estate tips and strategies, taught by his handpicked instructors.

I have three very simple principles. I don't like conflicts of interest; they should be eliminated or disclosed. I believe in transparency, that people have to really not just know but understand what they're buying and selling. And that you have to have enough capital to back up your promises.

There are few people who exemplify the ideals of opportunity, entrepreneurship and commitment to the collective good than the great New Yorker and the face of the $10 bill, Alexander Hamilton.