I don't agree with the stance in the Comey tweet, but it is a widely held belief in his, and many other circles, that the Dems will lose if they go too far left. I don't know if I agree, at all, I think the demographics and numbers may paint the exact opposite picture. I told my Dad this today, "So if it comes to Trump or Warren, you'll go Trump"? Obviously he said Warren, and that's a man in his 60's, who has been a "Moderate" his whole life. Comey would vote for Warren too, I think if it came down to it.