Perhaps the most provocative ad Hillary Clinton has run this cycle. It's bound to evoke comparisons to LBJ's "Daisy" ad and Walter Mondale's "Red Phone" ads -- asking the essential question: if the White House phone rings at 3:00 am and there's a crisis brewing, who do you want on the other end of the line? Arguably, this is her best ... argument .. against Barack Obama, and yet it's taken her 13 months to make it so explicitly.

ANNCR: It's 3am and your children are safe and asleep.

But there's a phone in the White House and it's ringing.

Something's happening in the world.

Your vote will decide who answers that call.

Whether it's someone who already knows the world's leaders.knows the
military.someone tested and ready to lead in a dangerous world.

It's 3am and your children are safe and asleep.

Who do you want answering the phone?

Hillary Clinton: I am Hillary Clinton and I approve this message.