He says that he consulted with Congress

On December 23rd Senator Tom Daschle is quoted in the Washington Post:

"As Senate majority leader at the time, I helped negotiate that law with the White House counsel's office over two harried days. I can state categorically that the subject of warrantless wiretaps of American citizens never came up. I did not and never would have supported giving authority to the president for such wiretaps. I am also confident that the 98 senators who voted in favor of authorization of force against al Qaeda did not believe that they were also voting for warrantless domestic surveillance."