Corruption in U.S. national government?

U.S. national government is the largest political organization in the world, that is one of the main reasons it is probably corrupt throughout its various levels. Government corruption happens everywhere, you can't prevent the total crap all over the planet Special interests and a small percent of elite people control both parties, the presidency, and the courts. I will mention some examples that prove corruption in this presidential administration in all three powers (executive, legislative, and judicial). In the Executive area the ATF gunwalking scandal– Attorney General Eric Holder was held in Contempt of Congress after refusing to release all documents which the House of Representative had demanded concerning the Fast and Furious gun walking operation. In the legislative branch a good example is Richard George "Rick" Renzi is a former American politician and was a Republican member of the United States House of Representatives representing a district in Arizona was found guilty of 17 counts against him, which included wire fraud, conspiracy, extortion, racketeering, money laundering and making false statements to insurance regulators. In the Judicial branch Samuel Kent a Federal District Judge of Galveston, Texas, was sentenced to 33 months in prison for lying about sexually harassing two female employees. Government's only interest is for its own survival and well-being. The U.S. Government, like nearly all governments are victim of corruption because it is simply inevitable, no governmental power can prevent it entirely. Many forms of corruption are illegal in the United States, including embezzlement, bribery and extortion, but sometimes it just happens.