In these scary times in American politics, with mutual scorn between Democrats and Republicans running hot, we rarely see the benefits of a two-party system. But it happened in Trenton on Wednesday. The Legislature passed a reasonable budget with the largest surplus ever, the biggest tax cut ever, and the largest paydown of debt ever. And for the second year in a row, it makes the full pension payment, steering the state to safer waters in the long run. As for the politics, please don’t get me wrong: Republicans hate this budget, they spent the afternoon heaping scorn on it, and they almost al…