Joe Biden, the comeback grandpa, had the best Super Tuesday anyone could have imagined. In fact, he performed so well, from solid wins in southern states, to surprise victories in Massachusetts and Minnesota, and an unbelievable upset in Texas, that some are already speculating that it’s all over and Biden is on a safe path to clinch the Democratic nomination. There’s still a long road ahead, and if anything, Biden has proven time and again that he has a rare talent for ruinous missteps. But still, he is now the frontrunner in a narrowed-down Democratic field.