Today’s Twitter lesson: It’s always best to consider the source.

~ Chuck Todd, reporter with NBC

~ Jay Byers, Greater Des Moines Partnership

~ Fred Thompson, former GOP presidential hopeful & U.S. Senator

~ Ed Tibbets, reporter with the Quad-City Times

~ Terry Branstad & Kim Reynolds 2010 Gubernatorial Campaign

~ Linn County Supervisor Ben Rogers, Democrat

~ Dave Price, reporter with WHO-TV

~ Polk County Sheriff’s Office

~ Charlie Smithson, executive director for the Iowa Ethics & Campaign Disclosure Board

~ Former New Mexico Gov. Gary Johnson, Republican

~ Scott Rasmussen, president and founder of Rasmussen Reports

~ Catherine McAuley Center, Cedar Rapids

~ Steve Grubbs, former Iowa Representative and chairman of the Republican Party of Iowa