Let's also not forget that Earl Warren, whose tenure on the Supreme Court was and is anethema to present-day conservatives, was appointed by President Eisenhower: who was enraged at Warren's liberal bent. Ginsberg, Souter, and Breyer could die tomorrow, and Obama would have the Devil's own time trying to find such extreme libs to replace them.
Any politician who fears an armed citizenry does well to do do. Any citizenry that fears politians is woefully under-armed. No legislature, no Exective and no Judical Authority has any legitimate power to override a God-given right. All three branches of our government need to live in fear of the People. Power, said Mao Tse-tung, grows from the barrel of a gun. Thanks to the Second Amendment, we the people own the power. We must never surrender this power. Should we do so, we shall become benighted slaves until we again take up the gun. Then, the road back will very likely be long and bloody. Even so, as it is the Motto of my Beloved Commonwealth: SIC SEMPER TYRANNIS!!!