Got some breaking news. The Associated Press, the New York Times, and CNN are reporting that Cheney has canceled an event for later this evening after doctors found that his problems with an abnormal heart rhythm have returned. He’ll be missing a campaign event for Marty Ozinga, who is running for the House against Democrat Debbie Halvorson, currently an Illinois state senator. Last year, when Cheney first presented with the problem, his normal heart rhythm was restored through a procedure called cardioversion, which uses an electrical impulse. He will be undergoing the same procedure later this afternoon.