Yahoo: (h/t willyjsimmons)

House Speaker Nancy Pelosi said Thursday that President Bush lacks the authority to invade Iran without specific approval from Congress, a fresh challenge to the commander in chief on the eve of a symbolic vote critical of his troop buildup in
Iraq.

[..]"I do believe that Congress should assert itself, though, and make it very clear that there is no previous authority for the president, any president, to go into Iran."

[..]Bush has asked Congress to approve $100 billion for the wars in Iraq and Afghanistan. Congressional Democrats are hoping to insert provisions that would make it harder for the administration to follow through on its plan to deploy an additional 21,500 combat troops to Iraq.

Rep. John Murtha, D-Pa., who is leading the effort, has said the measure may be changed to require that any troops deployed must meet formal Army readiness standards.

Murtha also said the measure may be changed to prohibit any military action against Iran without specific congressional approval.

Asked about Murtha's remarks, Pelosi said, "I fully support that." She added that she would propose it as stand-alone legislation if it is not included in the bill that provides more money for the Iraq war.