Morning Headlines: Wed., August 22

Here's a look at the stories we're following right now. What are you reading this morning?

NBC poll: Heading into conventions, Obama hangs onto slight lead

Akin controversy may endanger GOP chances

Akin defies own party, vows to stay in race

Storm may threaten GOP convention

Where's the Mars rover going? Robotic arm points the way

Romney Endorsed by, Praised Dr. John Willke, Leading Proponent of Idea That Rape Lowers Pregnancy Risk

In Toll of 2,000, New Portrait of Afghan War

Biden: Wall Street reform foes were like "squealing pigs"