So now all of America should know what a "s**t-eating grin" looks like.

That's my most cogent summation of last evening's vice presidential debate between Joe Biden and Paul Ryan.

While intermittently flashing a smug, insipid grin, Biden repeatedly and rudely interrupted Ryan in mid-sentence throughout the entire evening.  That's the tell-tale sign of a desperate person trapped in an embarrassing, compromising situation attempting to defend the indefensible.  At times Biden was strident, unhinged, desperate, and extremely unlikeable.

In contrast, Ryan was calm, precise, and polite -- not solely picking spots to insert the next mindless, group-tested talking point.  He was sincere and knowledgeable.  He didn't let Biden's constant interruptions throw him off his game.  Biden appeared to want to get his opponent in a dogfight, but Ryan was smart enough to not take the bait.

The moderator, Martha Raddatz, was a total disaster.  The main things Americans are concerned about are the lousy economy, skyrocketing deficit, and widely unpopular health care law.  Nary a peep from Raddatz about those concerns that keep millions of Americans awake at night, fretting over how they are going to make do.  Equally surprisingly is that she didn't spend a second on the 23 million Americans out of work, instead opting to concentrate 90 percent of the evening on everything but.  Ditto for energy prices, which are rapidly rising (particularly in California).  Not a single question.

The evening was a clear Ryan victory.  However, you shouldn't be surprised if you hear differently from the mainstream media.  Biden grossly overdid it.  Any solid points he might have made were undercut by his bizarre antics.

I don't know if last evening's debate will change many minds, but I'm certain that if Democrats were banking on Biden to check their ticket's recent slide, they should be very disappointed and anxious.  One thing's for certain -- as each day goes by, I'm surer and surer of a Romney rout.  Last evening did nothing to make me think differently.