The title of this post comes from the Presidential Oath of Office. It's full text is:
I do solemnly swear (or affirm) that I will faithfully execute the Office of President of the United States, and will to the best of my Ability, preserve, protect and defend the Constitution of the United States.
The Second Amendment to the Constitution reads:
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.
Though many sophists were inclined to believe that this somehow limited the rights to those associated with a Militia, most reasonable folks knew that "the people" referred to in the second amendment were the same "the people" referred to in the first, fourth, ninth and and tenth amendments.
The Supreme Court stated this utterly explicitly in Heller v DC on June 26, 2008.
Obama, however, has undermined the Second Amendment at every chance, in ways that render it null and void, while simultaneously professing (lying about) his support for the individual right to keep and bear arms.
Perhaps the most comprehensive collection of documentation of this dishonesty is the sarcastically named Sportsmen for Obama site. Another source is the NRA site here and here and here.
Obama does not believe in even the most basic right to keep and bear arms in self-defense in one's own home, see here for his vote against an override of gun bans for those in that situation.
He has stated that he considered DC's law ban constitutional. He has stated that he still believes Chicago's gun ban is constitutional, even though it fails under both 2nd and 14th Amendment laws (the Chicao ban allows politicians to keep and carry guns, but not private citizens - "equal proection under the law"?).
He has variously proposed or supported:
- no handguns
- no semi-automatics
- no guns stores within 5 miles of a park or public school
amongst other absurdities and atrocities.
The denial of effective defense to law abiding citizens is unconstitutional and has been the pre-cursor to many mass-murders in the 20th century. See Lethal Laws for more information.