Singiser brings over 15 years of political, campaign, and legal experience to her position as Special Assistant to the President for Legislative Affairs.
On CNN's "American Morning" Friday, Rubin -- a former assistant secretary of state in the Clinton administration and a supporter of Hillary Clinton's presidential campaign -- said McCain's criticism of Obama's position was hypocritical.
Mr Bauer had to install his glass door because his former campaign chairman, Charles Jarvis, complained that Mr Bauer was spending time behind an opaque one with a female assistant.