Who was First Lady during George W. Bush's presidency?

Who succeeded George W. Bush as President of the United States? Which president served from 2001 to 2009? In what year did George W. Bush first take office as President? Under which president did Dick Cheney serve as Vice President? Laura Bush was married to which president? Which number president was Barack Obama? Who was President immediately before Barack Obama? Which political party did President Barack Obama belong to?