Supreme Court Justice Brett Kavanaugh is officially back to work. Kavanaugh joined the court Tuesday about a week after the start of the new term and heard his first oral arguments in a case having to do with repeat offenders' prison sentences. Chief Justice John Roberts reportedly wished him a "long and happy career" on the bench before the court began. On Wednesday, he'll hear a case about whether the Department of Homeland Security has the authority to detain certain undocumented immigrants without a bond hearing. Kavanaugh is expected to shift the court's ideological bent to the right, although he pledged Monday night to be "independent" and "impartial."

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