This visit will spur a slew of articles on how Obama is "tacking to the center," becoming more "pro-business," and "mending relationships." This will mostly be bunk. The president is still selling the same Big Government product he's been peddling since the stimulus, and the Chamber is still buying the same corporatist product it's been buying since, well, the stimulus.
The Chamber isn't the worst of the business lobbies: Because it's broad-based, it's less likely to endorse a bill that benefits one industry at the expense of all the others. But it supported the stimulus, the Detroit bailout, and TARP. That may be pro-business, but it isn't pro-market.