Obama fails to call 'liar' on Romney

Romney tonight, in the first debate lied his head off about his own policies. And Obama looked down, refusing to call 'liar'. Can he win like this? As I've said earlier in this blog, I've advocated the necessity of calling liar on Romney. Others have done it. I think Obama could have done a lot better, by putting Romney on the spot by asking for specifics, instead of just complaining about the vagueness of Romney. He'd better figure out the formula for the next two debates.