After a 30-year career with the Secret Service, Director Mark Sullivan is expected to announce his retirement soon, reports NBC News.
Sullivan has served as director since 2006 during the Bush administration. The agency found itself in the middle of a controversy after a prostitution scandal during President Obama's trip to Colombia in April 2012.
Wisconsin Republican Sen. Ron Johnson accused Sullivan of misleading Congress during a testimony in May of last year about the scandal, something other senators called "unfair."
Read more at NBC News.