Sure, America was divided under Bush. And it's still divided under Obama (just look at the recent Minnesota Senate race and the New York congressional special election). According to the polls, America is a bit less divided under Obama than it was at the end of Bush's first 100 days. But not as much less as you would expect, given Obama's victory margin and the rally-around-the-president effect of the financial crisis (not to mention the disarray of the GOP).
Meanwhile, circulation for the conservative National Review (where I work) is soaring. More people watch Fox News (where I am a contributor) in prime time than watch CNN and MSNBC combined. The "tea parties" may not have been as big as your typical union-organized "spontaneous" demonstration, but they were far more significant than any protests this early in Bush's tenure.
And yet, according to Democrats and liberal pundits, America is enjoying unprecedented unity, and conservatives are going the way of the dodo.
Obama has surely helped set the tone for the unfolding riot of liberal hubris. In his effort to reprise the sort of expansion of liberal power we saw in the '30s and '60s, Obama has -- without a whiff of self-doubt -- committed America to $6.5 trillion in extra debt, $65 billion for each of his first 100 days, and that's based on an impossibly rosy forecast of the economy. No wonder congressional Democrats clamor to take over corporations, tax the air we breathe and set wages for everybody.
On social issues such as abortion and embryonic stem cell research, Obama has proved to be, if anything, more of a left-wing culture warrior than Bush was a right-wing one. All the while, Obama transmogrifies his principled opponents into straw-man ideologues while preening about his own humble pragmatism. For him, bipartisanship is defined as shutting up and getting in line.
I'm not arguing that conservatives are poised to make some miraculous comeback. They're not. But American politics didn't come to an end with Obama's election, and nothing in politics breeds corrective antibodies more quickly than overreaching arrogance. And by that measure, Obama's first 100 days have been a huge down payment on the inevitable correction to come.