Democrat vs Republican

http://www.diffen.com/difference/Democrat_vs_Republican

Obama is a democrat (social)
Bush is a republican (individual, corporate)

Differences in Philosophy

While there may be several differences in opinion between individual Democrats and Republicans on certain issues, what follows is a generalization of their stand on several of these issues. A Democrat is typically known as a supporter of a broader range of social services in America than those advocated by Republicans. Republican philosophy is based on a limited influence of government and a dominant foreign policy.

Republicans are considered on the "right" end of the political spectrum while Democrats are on the "left." The far right generally is pro-religion, anti-bureaucracy, pro-military, pro-business and pro-personal responsibility.

Republicans, are usually considered conservative (fiscally as well as socially), maybe a little pious, pro-business and against the bureaucracy often associated with big government. They see big governments as wasteful and an obstacle to getting things done. Their approach is Darwinian in that the strong shall survive, cream rises to the top, etc.

To the far left of the spectrum are the extreme liberal, or the most extreme democrats. Democrats are considered more liberal. Democrats tend to favor an active role for government in society and believe that such involvement – be it environmental regulations against polluting or anti-discrimination laws – can improve the quality of people’s lives and help achieve the larger goals of opportunity and equality. On the other hand, Republicans tend to favor a limited role for government in society and believe that such reliance on the private sector (businesses and individuals) – be it avoiding unnecessary environmental regulations or heavy-handed anti-discrimination laws – can improve economic productivity and help achieve the larger goals of freedom and self-reliance