The radicalized knucklehead convicted of threatening the lives of the “South Park” creators signed up as a volunteer for Barack Obama’s 2008 presidential campaign, but by the time Election Day arrived he had concluded it would be a violation of Islamic law to vote in the U.S. election, according to court records. Wannabe jihadi Zachary Chesser, 21, was sentenced earlier this year to 25 years in federal prison following his guilty plea to making the “South Park” threats as well as providing material support to terrorists (in this case the Somali guerilla group Al-Shabaab). Chesser, pictured in the mug shot...