CHRISTI PAUL: Do you believe he is the smartest choice for Hillary Clinton? 

CARL BERNSTEIN:  I think it's a very wise choice. All you have to do -- and let me put on my hat as the former chief Virginia correspondent of The Washington Post who stayed in touch with my old home base in Richmond, Virginia and knows something about Tim Kaine. He is universally respected in the Senate of the United States both for his temperament and his accomplishment. Very few Senators as highly regarded. But what he really brings to this is a mathematical ability to help win his own state of Virginia, to help win in Florida, to help win in Ohio. It is absolutely as Bill Clinton has recognized, the best possible choice, the fact that he will disagree in some of his votes about some trade questions I think will make no difference whatsoever. This is -- I think unquestionably, if Hillary Clinton was not going to go outside the mainstream and toward a general, or someone outside of politics, Tim Kaine is by far the most helpful choice she could have come up with. 

Related:

NY Times: ​Hillary Clinton Selects Tim Kaine, a Popular Senator From a Swing State, as Running Mate

Previously: 

CNN Debunks Trump's Ethics Attack On Clinton VP Choice Tim Kaine