As president, I will appoint tough, independent authorities to strengthen anti-trust enforcement and really scrutinize mergers and acquisitions, so the big don't keep getting bigger and bigger.

I can only say that I'm certainly relieved that my late father never did business with Donald Trump. He provided a good middle-class life for us, but the people he worked for, he expected the bargain to be kept on both sides.

The point is [Donald] Trump goes way too far. He then demonizes Muslims - American Muslims. He wants to ban all Muslims from everywhere in the world, including the new mayor of London who has spoken about this from coming to our country.

We have to build an economy that works for everyone, not just those at the top. That means we need new jobs, good jobs, with rising incomes.

One of the worst things [Donald Trump] said was about a woman in a beauty contest. He loves beauty contests, supporting them and hanging around them. And he called this woman "Miss Piggy." Then he called her "Miss Housekeeping," because she was Latina. Donald, she has a name.

I've said that we're going to produce real results for the American people because so many Americans feel left out and left behind, they think the economy has failed them, they think our government has failed, they can't stand the gridlock and dysfunction in our politics, and I'm determined to produce more good jobs with rising incomes, and deal with all of the concerns that families have about education, college affordability, student debt.

Keep striving for your goals, and remember that it's good to be ambitious.