President Trump and his administration are right to be concerned about national security, but it's unacceptable when even legal permanent residents are being detained or turned away at airports and ports of entry.

When a leader correctly identifies real hurt and insecurity in our country and instead of addressing it, goes looking for somebody to blame, there is perhaps nothing more devastating to a pluralistic society.

Senator Jon Kyl has given all of the eventual candidates in this race an excellent model of how to best serve Arizona and the country. He's set the bar extremely high, and I'll do my best to meet that standard.

You can't always say what's popular and you ought to go with it. I think that's why the founders were concerned about direct democracy. That's why we have a republic and that's why we have representatives who who are supposed to look at the issues and to look out for the next generation as well.

Enhancing long term national security requires that we have a clear-eyed view of radical Islamic terrorism without ascribing radical Islamic terrorist views to all Muslims.

Just when you think [Donald Trump] can stoop no lower, he does.

There are some Republicans who say that any time you raise new revenue, you have to have a tax cut to match it. I am not one of those Republicans.