welcome back to up. i m david gura. president trump now says he reg res n regrets not visiting arlington national cemetery. it s been a tough week for the president vis-a-vis with the military he commands. he is suggesting the more than 5,000 troops he s sent to the u.s.-mexico border will remain there amid calls to send them home for the thanksgiving day holiday, president trump said they are there for the long run. how long, mr. president? as long as necessary. they built great fencing, a very powerful fence, a different kind of a fence and very powerful. the fence is fully manned. nobody gets through. my colleague, julia ainsley visited the border and wrote about what she saw there, quote,