Of course I have got concerns. Donald Trump and I differ on a whole bunch of issues.

I agree with the basic principle that anybody who wants to serve in our armed forces and make sacrifices on our behalf, on behalf of our national security, anybody should be able to serve. And they shouldn't have to lie about who they are in order to serve.

The framers, in their wisdom, designed the [political] system so that power's pretty disbursed.

Together, we could open up government and invite citizens in, while connecting all of America to 21st century broadband. We could use technology to help achieve universal health care, to reach for a clean energy future, and to ensure that young Americans can compete - and win - in the global economy.

I think it's really important to enlarge the issue behind abortion. I have been serving for over two decades and I have seen year in and year out largely the Republicans voting against women's contraception, family planning.

When it comes to the budget, we know that we shouldn't be cutting more on core investments, like education, that are going to help us grow in the future. And we've already seen the deficit cut in half. It's going down faster than any time in the last 60 years. So why would we make more cuts in education, more cuts in basic research? Nobody thinks that's a good idea.

I believe in keeping guns out of our inner cities, and that our leaders must say so in the face of the gun manufacturer's lobby.