The first female speaker of the U.S. House of Representatives, Pelosi is the highest-ranking female politician in U.S.history, second in line to the presidency. She is preparing to do battle in this fall’s mid-term elections both for the Democratic Party and her own seat, which may be threatened if Democrats lose control of the House. She is under pressure from GOP chairman Michael Steele, who launched the “Fire Pelosi Bus Tour” set for this fall. Pelosi remains confident. “I fully expect to be Speaker” come November, she pronounced last month. Meanwhile the Pelosi juggernaut has managed to pass most of the bills brought by the Obama administration, including the health care overhaul, Wall Street regulations and unemployment benefits extensions. Next up on the economic agenda: tax changes and infrastructure development.