I was part of the gang of eight in the house in 2013 that was working on comprehensive immigration reform. We talked a lot about border security and what was effective and what was not. Walls are not effective when you`re out in the desert and you don`t need them.

I know that in the battle of ideas, Republican politicians are at a distinct disadvantage. Their fundamental philosophy - which I characterize as survival of the fittest, richest and whitest - is too callous for most Americans.

I have a treasure trove of Baker memories, all of which reinforce my sense of Howard Baker as one of the most decent people with whom I have worked. While I was simply a young staffer, he never treated me or my colleagues as anything else but equals.

When your voice contradicts reality and truth, the only way to create space for it is to discredit reality and truth.

Walls are very important when you`re separating two urban areas where if you`re actually able to get over the border you can probably get into the underground network in about 30 seconds. But when you`re out in the middle of the desert, it makes no sense because you have border security people have up to a day to apprehend people who are crossing illegally.

Actually we're not hearing a lot about gas prices right now from constituents. And I think that reflects a growing understanding on the part of the public, that there really is very little that the government and politicians can do.

Leading is not hypothetical debating; it's about solving real problems.