On Friday's broadcast of "CNN This Morning," Rep. Seth Moulton (D-MA) said that "We're a party that's very arrogant. If you don't agree with us 100% with our dogmatic views on certain issues, then you're not only wrong, you're a bad person. That's the attitude that I think a lot of American voters are hearing from Democrats, or that's what they perceive. We've got to change that."