Portraits of a politician

Sen. Barack Obama hugs attendees of the Service Employees International Union's Member Political Action Conference held at the Washington Hilton.

– Roll Call/Tom Williams

It's a motion blur of supporters around former North Carolina Sen. John Edwards as he signs some autographs after speaking at a fundraiser in Milwaukee.

– AP Photo/Morry Gash

Gen. David Petraeus intensely testifies on the future course of the war in Iraq while appearing before a joint hearing of the House Armed Services Committee and House Foreign Relations Committee.

– AP Photo/Pablo Martinez Monsivais

Rep. John Murtha speaks at a press conference Monday at the National Press Club about Congressional action on the United States’ future in Iraq.

– Roll Call/Tom Williams

Democratic presidential hopeful Sen. Chris Dodd speaks at the Service Employees International Union Political Action Conference in Washington. (And this is the only one I saw in which he wasn't yelling...)

- AP Photo/Gerald Herbert

Perfectly silhouetted? Rep. Ron Paul, a candidate for the Republican presidential nomination, speaks at Seattle University.

– Seattle Post-Intelligencer/Andy Rogers

Seen on the monitor of a video camera, Republican presidential hopeful Mitt Romney delivers a statement on Sen. Hillary Clinton's health care plan, outside of St. Vincent's Hospital in New York.

– AP Photo/Dima Gavrysh

Democratic presidential hopeful Sen. Hillary Rodham Clinton quite awkwardly flips steaks during Sen. Tom Harkin's annual fundraising steak fry in Indianola, Iowa.

– AP Photo/Charlie Neibergall