Facing a Thursday deadline to enter a guilty plea or face trial on charges of threatening to kill President Joe Biden and other officials, a California man is now asking for more time while plea negotiations continue. A lawyer for Kuachua Xiong, the 27-year-old Merced grocery clerk with ties to Sacramento facing charges in Iowa, filed a request Thursday in federal court asking for an extension through Nov. 20 for his client to decide whether to enter a guilty plea or proceed to trial. “The parties are negotiating and request additional time to execute the necessary documents,” Federal Defender...