Montana’s chief federal judge will retire following an investigation into an email he forwarded that included a racist joke involving President Barack Obama. U.S. District Judge Richard Cebull had previously announced he would step down as chief circuit judge and take a reduced caseload, but he informed the 9th U.S. Circuit Court of Appeals that he now intends to fully retire May 3. The appellate court posted a statement by Chief Judge Alex Kozinski on its website Tuesday announcing Cebull had submitted the retirement letter/Matt Volz, Associated Press. More here.