Prosecutors allege that a photo of seashells was a threat against the president. Former FBI Director James Comey is tentatively set to stand trial on July 15 on charges that he allegedly threatened to kill President Donald Trump by posting a photo of seashells spelling out "86 47" on a beach.   In a written order issued Friday, U.S. District Judge Louise Flanagan scheduled the trial to begin on July 15.  After his court appearance in North Carolina that was originally set for Monday was canceled, Comey will be arraigned on June 30.  Comey’s lawyers have previewed that they plan to move to dismiss the case. His pretrial conference is scheduled to take place on or before May 29. Renewing efforts to prosecute one of Trump's longtime adversaries, Department of Justice prosecutors brought the case after a judge last year  threw out  an indictment against Comey on unrelated charges.…