... he's already added more to the US debt in 4 yeaars than Bush added in 8 without any economic impact other than a slight gdp growth .
Whether from the US or not, research before you type. The national debt increased from $6,405 trillion in 2002 to $12,311 trillion in 2009 = an increase of $5,906 trillion. The national debt increased $1,975 trillion from 2010 through present.
Factcheck.org says as of Jan 31 2012 Bush added 4.90 trillion ( in his 8 years ) Obama added $4.73 ( in his 3 years at that point)
