Leaders do not sway with the polls. Instead, they sway the polls through their own words and actions.

Leadership is about doing what you know is right - even when a growing din of voices around you is trying to convince you to accept what you know to be wrong.

I generally believe in polls. Scientific polls are accurate.

I don't know what leadership is. You can't touch it. You can't feel it. It's not tangible. But I do know this: you recognize it when you see it.

At some point - I care about charter schools and criminal justice reform and $20 trillion in debt and real growth. At some point, I want to hear that clash of ideas. I don`t care if it gets ugly. That`s what campaigns are all about.

This crisis of long-term unemployment is having a profoundly damaging impact on the lives of those bearing the brunt of it. We know this thanks to a series of careful studies of the problem conducted in the depths of the 1930s Great Depression.

This is classic Donald Trump. This is the movement, not the party. He has been agitating against the leadership, the Washington establishment, the status quo, people who have held power, people that didn`t take on President Barack Obama to the extent he wanted to or the base wants to.