As a junior U.S. senator from Illinois, Barack Obama used his brief career to essentially snipe at President Bush and others in his administration over what he believed were a series of legal and constitutional abuses.
Most ironically Obama, in 2006, blasted Bush over his approval of warrantless domestic spying by the National Security Agency – spying that has not only continued since then but which was expanded exponentially under Obama. Then as now, both presidents claim authority to do so as commander-in-chief, in defense of the country, and under provisions of the USA Patriot Act.
But unlike Bush, the Obama Administration has been wracked by scandal, several of which have exploded onto headlines within weeks after he was reelected to a second term in November. Here is a list of 20 of the most prominent among them, as documented by veteran White House reporter Keith Koffler):