There are primaries happening today across the country - in Oregon, Arkansas, Pennsylvania, Kentucky. We look closer at the race in Kentucky where a Tea Party favorite, Rand Paul, the son of Rep. Ron Paul (R-Tex.), is leading in primary polls over GOP establishment candidate Trey Greyson..
We get a live update from Gabe Bullard, a reporter for WFPL in Louisville, Ky., as polls open. And Takeaway Washington correspondent Todd Zwillich looks at the effect a win by Paul could have on the direction of the GOP