When you call him, please ask him if he attended a meeting that took place in St. Louis that summer.
When the Kansas City reporter spoke with Musgrave, Musgrave told him he recalled Kerry at the Kansas City meeting. The KC Star reporter then contacted a man named Hurley with the Kerry campaign (it's mentioned in this Lipscomb article, too) for comment, and Hurley told the reporter that Musgrave must be confused and remembering hearing Kerry speak in St. Louis because Kerry, said Hurley, was absolutely not in Kansas City.
As Lipscomb points out, another Kerry staffer named Wade had earlier said Kerry wasn't in St. Louis either.
So, ask Musgrave if he was at St.Louis, please.