The president, says Donald Trump's lawyer Jay Sekulow, should have "temporary presidential immunity," meaning he can't be investigated or prosecuted by anyone while he's in office. Also Jay Sekulow, with that other president:
The Supreme Court heard this rather expansive view of executive immunity Tuesday morning over whether the House of Representatives has the right to obtain information about Trump's business enterprises. For three hours, Trump's lawyers argued that he is, indeed, above the law.
The court is expected to rule in July, either to require Trump to release it all—including tax returns—recognizing that the division of powers and checks and balances in the constitution really means all that, or that a potentially criming president gets to continue on criming unchecked while he's in office. "Criminal process targeting the President" violates the Constitution, Sekulow said. "The President isn't above the law," Justice Elena Kagan responded.
There's a third possibility, says The New York Times' Adam Liptak, based on some of the questions from the justices. They could punt the case back down to lower courts for reconsideration, thereby buying time and possibly deferring a decision until after the next election when at least one of them (cough, John Roberts, cough) wouldn't then have to be the deciding vote on an immense constitutional question of the separation of powers.
The conservatives on the court, including Roberts, seemed concerned with the idea of "presidential harassment," because it's this president and not, say, William Jefferson Clinton.