This is something we should already know.

WASHINGTON -- For Barack Obama, it was strike two. And this one was a right-down-the-middle question from a YouTuber in Monday night's South Carolina debate: "Would you be willing to meet separately, without precondition, during the first year of your administration, in Washington or anywhere else, with the leaders of Iran, Syria, Venezuela, Cuba and North Korea?"

"I would," responded Obama.

His explanation dug him even deeper: The notion that somehow not talking to countries is punishment to them -- which has been the guiding diplomatic principle of this administration -- is ridiculous."

Immediately upstaged by Hillary,

"Asked to be commander in chief, Obama could only play first-responder in chief. Caught off guard, and without his advisers, he simply slipped into two automatic talking points: emergency response and its corollary -- the obligatory Katrina Bush-bash. "

These gaffes lead to one of two conclusions: (1) Obama is inexplicably unable to think on his feet while standing on South Carolina soil, or (2) Obama is not ready to be a wartime president.

This underlines just what we already know: Obama has no business being President. He was a state senator just a few years ago. Would you elect one of your state senators to Commander in Chief? Lord, help us.