An attempt to initiate a traffic stop in Camden County led authorities on a 50-mile chase that ended in Liberty County on Tuesday night — and pre-empted a trip to visit the president of the United States. According to a report filed by Liberty County Sheriff’s Office Deputy Brian Barnes, the Georgia State Patrol notified Liberty County 911 dispatchers that GSP and Camden County deputies were pursuing a white Nissan Maxima heading northbound that had been clocked doing 90 mph near mile marker 22 in Camden County. Barnes stated he and LCSO Lt. Ralph Dixon stationed themselves at mile marker 69 and deployed stop sticks in an attempt to end the pursuit.