<span>Maybe 2 persuade the Supreme Court to endorse his New Deal programs</span>
It shows the doer of the action.It comes before verb and indicates this action or work is done by it/him/her etc.Ex.Susan switched off the lights. Who switched off the lights? The answer is Susan (subject of the sentence)
Robin brought Magna Carta to Sherwood Forest.
When he told her that he wouldn't touch her again, they decided that she would become a vampire so that they can have a 'normal' relationship.