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Republican Senator Chuck Hagel:

"Listen, it wasn't just the CIA involved here," said Sen. Chuck Hagel, R-Nebraska. "We had the vice president and his office involved, [Defense Secretary Donald] Rumsfeld, [National Security Adviser] Condi Rice, [Secretary of State Colin] Powell's people. This wasn't just a one-man show."

Hagel voted to give Bush the authority to go to war with Iraq, but he told reporters last week the Bush administration's case for war was looking "weaker and weaker." Monday, he told CNN, "There's a cloud hanging over this administration."

"Anybody who knows anything about this understands that we didn't go to war because of 16 words in a speech," he said. "But this is a part of a bigger mosaic here, a bigger framing of an issue that we need to know more about."