UPDATED Video: Blake Shelton and Miranda Lambert to perform "Over You" in honor of Oklahoma on "The Voice" tonight; Swon Brothers contending on tonight's show - Article Photos 57/520

White House press secretary Jay Carney gestures as he speaks during his daily news briefing at the White House in Washington, Wednesday, May 22, 2013. At the briefing Carney announced that President Obama will travel to Oklahoma to visit tornado affected communities. (AP Photo/Jacquelyn Martin) ORG XMIT: DCJM101