The U.S. Constitution lets a defendant represent himself in a criminal case, a federal appeals court noted, “no matter how foolish that choice may seem.”The 7th U.S. Circuit Court of Appeals this week held a Wisconsin state judge violated the Sixth Amendment when he denied Rashaad A. Imani’s motion to act as his own lawyer in his trial on charges stemming from a bank robbery.Waukesha County Circuit Judge J. Mac Davis was supposed to determine only whether Imani was competent to represent himself and …