Trump hit back after the Chamber criticized his policy on trade.
The pro-gun group is backing the ad with $2 million and airing it in battleground states.
"We can’t do waterboarding, but they can do chopping off heads, drowning people in steel cages."
"One big lesson of this campaign is don't try to outthink the polls," Silver said.
Clinton leads Trump in seven different states.
Trump said he was sure Tyson "would do a good job" if he was asked.
Over half of Americans think neither Clinton nor Trump would be a good president.
"It is clear, in hindsight, that the facility was not sufficiently protected."
"I am sympathetic to a lot of the people ... who are feeling really left out and left behind."
Vincent Harris also worked on Mitch McConnell's 2014 reelection bid.