The Democrats lurch leftward. Given the unequivocal rout in the November 5 election, there’s been no shortage of friendly advice on how the Democratic Party can resuscitate itself. From Senator Zell Miller, a Georgia Democrat, looking at the prospect that Representative Nancy Pelosi of San Francisco will become the new public face of the Democratic Party in the House of Representatives:”We’ve got the left turn signal on, and we’re headed down another rabbit hole to political oblivion.” From Harold Ford Jr., a Democratic representative from Tennessee, arguing his case on why he should be Minority Leader in the House: “Last...