Donald Trump, who grapples with a slew of legal overhangs, got a slight reprieve on Tuesday as the U.S. Supreme Court agreed to hear his presidential immunity claim in connection with the Jan. 6, 2021, Capitol Hill riot. The former president’s niece Mary Trump, however, contended that this may not mean much for her uncle. Financial Mess: Mary Trump, a psychologist, said the SCOTUS shouldn’t have taken the case at all. The development will in no way affect Donald Trump’s state cases, she said, adding that the former president faces two criminal state cases, one in New York for allegedly falsify…