Prosecutors say Park colluded in the criminal activities of a longtime friend and confidant to manipulate government affairs and extort businesses.
Members of parliament voted by secret ballot with 234 in favor and 56 opposed to Park Geun-hye's ouster.
Ronald Bert Smith Jr. clenched his fists and raised his head at the beginning of the execution. The state's correction's chief said protocol was followed.
The Supreme Court earlier issued two temporary delays in the execution of Ronald Bert Smith Jr., convicted in the shooting death of a store clerk.
United Steelworkers Local 1999 President Chuck Jones said Trump's comments "don't really faze me" after he disputed Trump's saved jobs claim.