Elon Musk wants to launch a new political party. Here's why some people think it won't work.

Well, President Trump and Elon Musk's on again, offagain feud is back on again after the Tesla CEO says he wants to start a new political party over the weekend. Investors may be growing tired of Mus political rhetoric and wishing he would put business first. To that end, we're joined now by senior columnist Rick Newman.Rick, welcome. What is the latest. Hey Josh.Well, uh, Musk threatened before Congress signed the big tax bill and Trump signed before Congress passed it and Trump signed it. He hated that ta ...