The Post's current lede [emphasis added]:

Rep. Joe Barton (R-Tex.) on Thursday apologized to BP CEO Tony Hayward for the way his company has been treated by the U.S. government, drawing heavy criticism from the left and giving ammunition to an administration on its heels over the gulf oil spill.

And this later in the article:

Almost immediately following Barton's comments, the liberal blogs and Democratic campaign operatives sprang into action and the White House denounced Barton.

All that is accurate. But as has been reported elsewhere, Barton's also facing heaving criticism from his own party. In fact, it was a Republican member of Congress today who went public and demanded Barton give up his chairmanship position in the wake of his BP apology. So I'm not sure why the Post presents the Barton story as a left/right partisan one.