Philadelphia Phillies starting pitcher John Lannan throws during a baseball spring training exhibition game against the Pittsburgh Pirates, Monday, March 4, 2013, in Bradenton, Fla. (AP Photo/Charlie Neibergall)
A tea party supporter holds a Don't Tread on Me flag during a rally on Saturday, April 16, 2011, at the Statehouse in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
Meat department manager Kevin Morlan arranges packages of pork at a Dahl's grocery store in Des Moines, Iowa, on March 3, 2011. (AP Photo/Charlie Neibergall)
Green Bay Packers wide receiver Jordy Nelson runs on the field during the first half of an NFL football game against the Minnesota Vikings Sunday, Dec. 30, 2012, in Minneapolis. (AP Photo/Charlie Neibergall)
A tea party supporter holds a Don't Tread on Me flag during a rally on Saturday, April 16, 2011, at the Statehouse in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
Nebraska safety P.J. Smith (13) reacts after Iowa missed a field goal during the first half of an NCAA college football game, Friday, Nov. 23, 2012, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)
Nebraska safety P.J. Smith (13) reacts after Iowa missed a field goal during the first half of an NCAA college football game, Friday, Nov. 23, 2012, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)
U.S. Sen. Marco Rubio, Florida Republican, speaks during Iowa Gov. Terry Branstad's annual birthday fundraiser, Saturday, Nov. 17, 2012, in Altoona, Iowa. (AP Photo/Charlie Neibergall)
** FILE ** Iowa Supreme Court Justice David Wiggins (right) participates in a discussion in Des Moines, Iowa, on Tuesday, Jan. 24, 2012. (AP Photo/Charlie Neibergall)
