How important is this? Certainly, the Republican party’s first task obstacle is finding compelling leaders to make the case against the Democrats, as it builds itself back up for the elections of 2010 and 2012. And of course it has to hone an agenda that offers specific alternatives to Mr. Obama’s far-reaching shifts in economic, social and national security policy.

Yet tone matters. Time and time again, Americans have responded to optimism, delivered even in — indeed, particularly in — the most dire times, and even when that sunny message cloaked an attack. In many ways, Reagan’s presidency was symbolized by one 1984 reelection advertisement, “It’s morning again in America,” just as Bill Clinton’s was by his choice of Fleetwood Mac’s “Don’t Stop” as a musical reminder that he was “thinking about tomorrow.”…

“They have to avoid being stigmatized as a bad bunch of people,” he said of the Republicans.

The Democrats took obvious delight in the new round of attention paid to Mr. Cheney, Mr. Gingrich and Mr. Limbaugh, none of whom, it seems fair to say, are graduates of the Happy Warrior school of politics.