When it comes to Trump Supreme Court bid for immunity, his test case is Richard Nixon

WASHINGTON − At landmark arguments Thursday in Donald Trump's longshot Supreme Court bid for presidential immunity, his test case is Richard Nixon. After Nixon avoided criminal charges from Watergate through a presidential pardon, he set the standard for whether presidents can face lawsuits. An Air Force weapons analyst had sued Nixon, claiming he’d been fired in retaliation for telling Congress about massive cost overruns in the Defense Department. A closely divided Supreme Court said in 1982 Nixon couldn’t be held liable for official actions because civil suits would be too...