WASHINGTON -- President Donald Trump's lawyers laid the groundwork Monday for invoking executive privilege in an effort to block potentially damaging public testimony from witnesses like former national security adviser John Bolton.
Though this claim is unlikely to succeed in the courts, it could give Senate Republicans a talking point for standing firm against Democrats' demands for witnesses to be called in the Senate impeachment trial of the president.
Executive privilege is not mentioned in the Constitution, but it has long been a favorite doctrine for White House lawyers of both parties.
It is best known in American history as the last line of defense for President Richard Nixon when he faced impeachment for the election-year break-in at the Watergate offices of the Democratic National Committee. As the cover-up unraveled in 1974, Nixon fought to keep secret his Oval Office tapes that recorded him approving hush money for the burglars.
Nixon sued to block the subpoenas and lost unanimously in the Supreme Court. But at the same, the court recognized the validity of executive privilege, albeit with limits.
In U.S. vs. Nixon, the justices said there is a "general privilege of confidentiality of presidential communications" that has "constitutional underpinnings." It was the first time the court had squarely recognized executive privilege. It is "fundamental to the operation of government and inextricably rooted in the separation of powers under the Constitution," the justices said.
However, it is not "an absolute, unqualified presidential privilege of immunity," they added. And most importantly, the president's "generalized assertion of privilege must yield to the demonstrated, special need for evidence in a pending criminal trial." Nixon was told he must turn over the tapes. He did so, and within two weeks, he had resigned.
For decades afterward, White House lawyers have cited executive privilege when trying to ward off repeated demands for documents from Congress. However, presidents were often wary of invoking "executive privilege" by name out of concern it might be seen by voters as attempting to cover up improper or illegal acts.
Trump has also tried to find other words to invoke the need for confidentiality. Asked last week in Davos, Switzerland, about whether he would try to prevent testimony from Bolton, Trump said, "But when you have a national security -- where you could call it a presidential prerogative. The way I look at it, I call it national security. Executive privilege, they say. So John would certainly fit into that. When you're a national security adviser ... I just think it's very hard."
The president's lawyers have been more direct in asserting executive privilege in the Senate trial. Jay Sekulow, the president's personal attorney, bristled at House manager Rep. Jerrold Nadler, D-N.Y., for appearing to question the use of executive privilege in this case.