Seems to me, the increasing nervousness among Republican Congressfolk, and their willingness to undercut Bush's policy by passing legislation carping at him (while he's out of the country yet), is most likely traceable to media reports of decreasing public support of the war. Which dwindling support, even if the reports of same are not slanted in themselves, is most likely the result of slanted reporting of what's happening in Iraq -- failure to mention Iraqi attitudes and Iraqi or American accomplishments that might give U.S. readers some hope that things are working out. So by selective and sometimes misleading reporting about Iraq, the press has managed to reduce even passive home-front support for our military/political operations there, and then has milked that decrease in popular support for all it's worth (or more) so as to undercut Congressional support.
Which I find disturbing.
Which does not mean I'm always critical of critical press re Iraq. I'm somewhat conflicted about the Post's scoop re secret CIA detention centers. I wish I knew more about whether the interrogation tactics they're using there are actually at all helpful in obtaining critical information on Islam jihadist plans, locations and tactics. Then I'd at least know whether the questions -- is the existence of these places disgraceful, and was the Post justified in reporting about them -- are easy or hard.