The most enduring legacy of President Barack Obama is going to be a new generation of leaders standing up for liberty.

Donald Trump threatened to file a defamation suit against me for running a TV ad that consisted only entirely of his own words on national television. Now, that's really a remarkable theory, that it is defamation to show people what he said on national TV. I think the voters are smarter than that.

What animates me in politics are the economic issues of opportunity.

The authorizing committees are free to set their agency budgets, and that includes NASA.

Congress needs to send a strong signal that direct communication with the leader of the free world is a privilege, particularly for a regime that has been as hostile as Iran has been towards America for more than three decades. President Rouhani needs to take these two simple steps to demonstrate good faith before any further discussions.

You don't have to solve every problem at once.

The message that I am conveying to President Trump, to the Cabinet, to leaders in both Houses is real simple. Let's do what we promised. Let's deliver on the promises and if we do that, we'll win at the ballot box and if we don't, the people will hold us accountable for that too.