Chief Justice Roberts won’t preside in Trump’s second impeachment trial; what does the Constitution say?

Success rates for plaintiffs in adjudicated federal cases declined from about 70 percent in 1985 to 33 percent in 2009, according to a draft study by two law professors. University of Connecticut law professors Alexandra Lahav and Peter Siegelman say they can’t point to a single reason for the “astonishing” drop in success rates, Reuters…