Powell and Dick Cheney made assertions that Iraq had ties to al Qaeda. http://www.cnn.com/2005/US/11/10/iraq.intel/index.html
I didn't read your link but...Which administration's claim? Didn't 2 others prior to this one claim that Iraq had WMD? I kind of understand the Iraq/Al-Queda connection because they both hate the US (but that connection envelopes that entire region) so why stop there? It was a lose-lose situation. If he hadn't toppled Saddam and Saddam one day figured out a way to harm the U.S. the president would be blamed for not doing enough. He went in and took him out so now some are saying that he went too far. Is there a happy median?