The American Civil Liberties Union filed suit Thursday over a controversial wiretapping law, challenging the constitutionality of the expanded spy powers Congress granted to the president on Wednesday.
The federal lawsuit was filed with the court just hours after Bush signed the bill into law.
The Electronic Frontier Foundation is expected to challenge the provision of the bill that gives retroactive amnesty to telecoms that are being sued for helping the government spy on Americans without warrants.
But the San Francisco-based online rights group also announced in a fund-raising letter on Thursday that it too would challenge the constitutionality of the bill's expanded spying powers. An EFF lawyer said the group was still developing the case and could not provide details of when or where the case would be filed.