Donald Trump is reinforcing harmful stereotypes and offering a dog whistle to his most hateful supporters. It's a disturbing preview of what kind of president he'd be.

Our country deserves no less, because all of the other issues we want to deal with depend upon us being secure and strong.

If Donald Trump's main claim to be president of the United States is your business, then I think we should talk about that.

Increasingly, we are seeing cyber attacks coming from states, organs of states. The most recent and troubling of these has been Russia.

People like Donald Trump can take all the money that's made from a TV show, from selling neckties made in China, running golf courses, and wipe out that income for tax purposes with depreciation. Only a narrow segment of people qualify for this.

It's one of the reasons [Vladimir Putin invitation to U.S] why 50 national security officials who served in Republican information - in administrations have said that Donald [Trump] is unfit to be the commander- in-chief. It's comments like that that really worry people who understand the threats that we face.

If we're going to be an effective, efficient economy, we need to have all part of that engine running well, and that includes Wall Street and Main Street.