The general public public perception of NASA is that it’s an inefficient, unnecessary drain on the US budget. How bad a drain? Bad Astronomy quotes The Space Review:
In a just-completed study, we asked respondents what percentage of the national budget is allocated to NASA … NASA’s allocation, on average, was estimated to be approximately 24% of the national budget (the NASA allocation in 2007 was approximately 0.58% of the budget.)
I wonder how many government programs you’d have to ask about before you ran out of percents.