Although the Bush administration has plenty of excellent canditates, I'd like to nominate Condoleezza Rice — Certainly one of the most articulate, intelligent members, and an outspoken RKBA defender to boot.
From a George Will column dated August 2000:
"IN A PLEASANTLY meandering conversation over lunch in San Francisco last summer, Condoleezza Rice, then still provost of Stanford but already unofficially what she now is officially, George W. Bush's senior foreign policy adviser, was asked her thoughts about gun control. "I am," she answered crisply, "a Second Amendment absolutist." Growing up in Birmingham, Ala., in the early 1960s, when racial tensions rose, there were, she said, occasions when the black community had to exercise its right to bear arms in self-defense, becoming, if you will, a well-regulated militia."
From the September 2001 issue of Biography magazine:
"In a Birmingham drenched with racial ugliness, another aunt, Genoa McPhatter, remembers Mrs. Rice (Condi's mother) facing down a clerk who tried to bar Condoleezza from a fitting room. And when a bomb rocked a neighborhood church on a terrible Sunday in 1963, Condoleezza knew one of the four children killed.
"My father and the men in the community protected the community by going out there armed so that night riders didn't come through," said, Rice, who became a staunch gun defender. "I can guarantee you if their guns had been registered, Bull Conner (notoriously racist Birmingham Police Chief) would have gathered up everyone of them."