Iowa caucus

Take a nearly century-old theater in downtown Des Moines. Fill it to capacity — that's 1,200 audience members and another 200 credentialed media — bring in a lineup that includes almost 10 would-be, might-be, could-be Republican presidential hopefuls, and it's looking like the 2016 campaign is officially underway.

Rep. Steve King of Iowa, a conservative from the northwest corner of the state, is hosting the Iowa Freedom Summit Saturday along with Citizens United.

ozark riverways sign
Jimmy Wayne / Flickr

This week on the show: why aren't the candidates for President talking about agricultural issues? Plus: environmental groups petition the National Park Service to take better care of Missouri rivers.