Tuesday on CNBC’s “Squawk Box,” Sen. Rand Paul (R-KY) said the evidence that Iran was an imminent threat to the United States was not there.Co-host Joe Kernen said, “You have such a tough job. I asked Senator Scott, and he said, I love Senator Paul because you never waver, but everybody wavers. I was going to ask you about war powers, and the Constitution is messy, and to stick with it as you do in the real world, it’s hard. I don’t know why you even have this job. It must be so difficult at this point for you, right?...