On the eve of qualifying deadline, candidates for state senator are readying their running shoes for the summer political sprint which will see contested races for both parties.At stake is the 16th District State Senatorial spot which is vacant given the departure of incumbent Eric Stewart, who is running for U.S. Congress against incumbent Scott DesJarlais. Stewart is leaving office as the seat changes from 14th to 16th District. The sole change caused by redistricting is dropping Bledsoe County and adding Marion County.The race presently includes numerous Warren countians, including a former state senator.