White House won't give Republicans Sotomayor documents claiming that they are irrelevant

So why isn't this getting really any attention in the news? If Sotomayor hadn't already made so many controversial statements, I might think that the WH had a point here, but Sotomayor is already over the top. The AP has this:

A top Republican pressed for more information Thursday about Supreme Court nominee Sonia Sotomayor's ties to a Puerto Rican civil rights group he said took extreme positions on race, as the White House argued that the material was irrelevant to the judge's nomination.
White House Counsel Greg Craig told Sen. Jeff Sessions, R-Ala., in a letter that board meeting minutes and other papers detailing the Puerto Rican Legal Defense and Education Fund's activities while Sotomayor was an outside adviser shouldn't impact her nomination because she had no role in writing or approving them. But Sessions, the top Republican on the Senate committee that will consider her nomination, said the papers could shed light on Sotomayor's judicial approach, particularly her view of racial preferences in hiring. . . . .