I certainly understand your disappointment. I became a Notary Public in my home state so that I could register voters for the 2000 elections. I hung on G.W. Bush's every word. I believed that he would do what he said he would do. When he "caved" on education and passed a bloated, no-voucher bill, I was crushed. I saw things going downhill from there.
I must add, however, that I am continually educating myself on our American system of government and its history. I am currently reading, To the Best of My Ability, a very well put together book on every president (campaign through administration) up to President W/43.
I am learning that the executive branch of government is not so powerful in so many arenas as I have thought. I am learning that there are certain areas where a president has sole and supreme authority, (tariffs and vetos, for instance,) and other areas (budgets, legislation) where he doesn't even have a voice if the House and Senate are not on his side.
As I read about the very men who founded this country, and what they did and did not do in office (versus what they espoused prior), I learn that G.W. Bush is doing a pretty darn good job, all things considered.
I will vote for him again. I may even keep going door-to-door to encourage others to do so.