>> After a bruising confirmation battle, new Supreme Court Justice Brett Kavanaugh got down to work Tuesday taking a seat on the bench to hear a case on criminal sentencing. A handful of protestors shouting at Kavanaugh, who survived sexual misconduct allegations to win Senator approval but by the slimmest margin in more than a century.
>> And I will always be a team player on the team of nine.>> The 53 year old arrival in the lifetime post cements a five four conservative majority for decades to come. Reporter Andrew Chung was inside the courtroom Kavanaugh's first day.>> His first full day on the court was a fairly routine, even light-hearted affair.
The tone of the courtroom was quite jovial. There was some joking among the justices, there was not sign of lingering animosity or concern regarding what transpired over the last few weeks.>> Unlike Kavanaugh's rockiest confirmation vote Saturday in the Senate, there were no outbursts from protestors in the courtroom.
About 20 minutes into the arguments, Chung said Kavanaugh asked his first question on the case which centered on which crimes deserve long prison terms under federal law.>> Justice Kavanaugh also did not maintain a low key posture during the arguments. He asked some tough questions that were quite technically even.
>> I've never sexually assaulted anyone.>> During his confirmation hearing last month, Kavanaugh denied allegations of sexual assault brought by California University Professor Christine Blasey Ford.>> 100%.>> Kavanaugh accused Democrats of an quote ochestrated political hit, later voicing regrets in an opinion piece. But the partisan tone raised fear that the high court could become an overtly politicized institution.