President Trump talks about extreme vetting, and we actually do have extreme vetting when it comes to refugee resettlement. Refugee resettlement is the most thorough, cumbersome, multilayered vetting system we have for the admission of anyone to the country.

With every case from years ago there should be lessons learned.

I think that the potential for homegrown terrorist attacks is something that we have to be very concerned about, because, in many respects, it's harder to detect when you have an independent actor who may be living in our midst, in our own communities.

The Secret Service hates to complain about something. They're secret by nature. They're not boastful; they don't like to be in the limelight. And therefore, they need middle management, i.e., a Cabinet-level person, to be their advocate, to Congress, to the White House, to ensure that they have adequate funding.

And we need a president who is a uniter, not a divider; who can lower the temperature, not raise the temperature. And I wish President Trump would spend more time trying to go beyond his immediate base to reach people, and use the presidential microphone to try to bring people together, instead of the rhetoric that seems to divide us.

I hope that the states are taking seriously their obligations to harden the cybersecurity around the election infrastructure that Americans rely upon and need.

Politics, in my judgment, has become not just the means to a policy ends, but it's become the end itself. Politics has become the sport that we all watch, and we all pay attention to.