JEFFREY ROSEN IS ABSOLUTELY RIGHT in this piece on Eldred v. Ashcroft:

But although they recognized it as a bad law, Chief Justice William Rehnquist and his colleagues expressed skepticism about the constitutional basis for striking down this flamboyant piece of special interest legislation. “We’ve said there was a general grant” of power to Congress “and that Congress was free to run with it in many respects,” Rehnquist told Lessig in an uncharacteristic burst of deference to Congress. In fact, the constitutional arguments against the CTEA are the same ones Rehnquist has made the centerpiece of his judicial legacy: that the Constitution grants Congress limited powers, which may only be exercised for carefully enumerated purposes. Seen in this light, the case for striking down the CTEA is actually stronger than the case for striking down the Violence Against Women Act, the Brady Bill, the Gun-Free School Zones Act, and other federal laws that Rehnquist and his conservative colleagues have held exceed Congress’s enumerated powers. If the Court upholds the CTEA while continuing to strike down far less objectionable statutes in the name of limited federal government, Rehnquist’s crusade to limit Congress’s power will be clearly revealed to be based not on devotion to constitutional text and history but on the political and economic interests that a given law serves.

Actually, Rehnquist’s statement isn’t even consistent with existing precedent. You can read more along these lines here.