While George Bush was president and Congress was primarily of a Republican nature, even organizations like MoveOn.org and blogs like the Daily Kos were on my side. I attended HUGE protests in 2005-2006 before the Democrats took control of Congress in the elections of 2006 -- but after that, the protests began to weaken or evaporate.
Once when there was an event in DC on the 5th Anniversary of the invasion of Iraq in 2008, I was told by the lead organization that it didn’t want Cindy Sheehan "anywhere near Washington DC." I, and many others, were in favor of a large demo in DC that year, as we always did, but one of the lead antiwar (Bush) organizations actually told us, since Democrats were in the majority in the House and they were continuing to fund Bush’s wars and not impeach him, that a demo in DC would, "embarrass the Democrats."
Now that we have had two years of a complete Democratic tyranny in DC and almost four years of a Democratic regime in the White House, the antiwar movement has continued its tailspin because it was mostly populated by "liberal" Democrats, or other Democratic functionaries like the Communist Party, USA.
-- Cindy Sheehan, "Republican for President?" (Cindy Sheehan's Soapbox).