The jobs market kicked off 2020 in grand fashion, adding 291,000 in private payrolls for the best monthly gain since May 2015, according to a report Wednesday from ADP and Moody’s Analytics. That was well above the 150,000 estimate from economists surveyed by Dow Jones and more evidence that the U.S. still is a good distance from full employment even with the jobless rate at its lowest point in more than 50 years. The total also was a sharp gain from the 199,000 in December, which was revised down 3,000 from the initial count. The ADP count comes two days...