 While Monday's theme was make America wealthy once again, tonight's theme is make America safe once again. It's believed the final speaker of the night will be Trump's one-time rival Nikki Haley. She was initially not invited to speak and was not going to be here, but was apparently invited after the weekend assassination attempt on the former president. It's believed she will speak on that issue, making America safe, while also trying to unify the party. Matt Piper, CBS News, Milwaukee.