“Donald Trump insists he is willing — eager, even — to sit down for a tough interview with Robert Mueller. His lawyers have other ideas, and hope to strictly limit any questioning of the president under oath or prevent it from happening altogether. Whether they can pull this off is a legal and constitutional question for which the precedents do not look good.
“As they consider the options, they and and their boss would do well to learn from Bill Clinton, who was asked to testify on four separate occasions while under investigation during his presidency.
“On three of those occasions, Clinton and his lawyers readily agreed to the requests, without the issuance of a subpoena.…