Of the 275 bills he has sponsored or co-sponsored in his tenure in the assembly, only 10 have passed and all 10 were to commemorate a holiday (Martin Luther King Day, Lunar New Year, etc) or to mourn a deceased legislator, and only eight others even made it out of committee (info from billtrack50). I can’t call a politician who hasn’t managed to pass a single piece of real legislation “once in a lifetime.” Maybe in a decade or two when he had built up a real coalition, but not yet.