How do dems keep blaming Bush when they have had control of congress for 5 years?

Isn't the congress the ones who control the purse strings come on dems this is really getting irritating and sickening to hear this day in and day out take responsibility man up and admit your party is a total failure. So now I would like to hear you tell me why the dems are not responsible after controlling the purse strings for 5 years?