Trump's three US Supreme Court appointees thrash out immunity claim

FILE PHOTO: U.S. President Donald Trump speaks next to U.S. Supreme Court Associate Justice Brett Kavanaugh as they participate in a ceremonial public swearing-in at the East Room of the White House in Washington, U.S. October 8, 2018. REUTERS/Jonathan Ernst/File Photo

WASHINGTON (Reuters) - When the U.S. Supreme Court ultimately rules on Donald Trump's claim of presidential immunity from prosecution, a third of those deciding the matter will be justices he appointed to their lifetime posts.

Those three - Amy Coney Barrett, Brett Kavanaugh and Neil Gorsuch - posed questions from various angles as the nation's top judicial body heard arguments on Thursday in a case that provides a vital test of the power of the presidency. They comprise half of the court's 6-3 conservative majority.