From the NY Times:
House Speaker OKs 9 / 11 Panel Extension
Hastert, R-Ill., in a letter to the two chairmen of the commission, former New Jersey Republican Gov. Thomas H. Kean and former Rep. Lee Hamilton, R-Ind., acknowledged that he had been “reluctant to support this extension” because of the need for Congress to move quickly on the findings of the report.
The fact that the new deadline falls right around the time of the Democratic Convention had nothing whatsoever to do with Hastert’s reluctance. Yeah, right.