Reinhold Matay/AP

Mitt Romney's perfectly groomed hair has been garnering attention since before the last presidential election.

Daniel Berehulak/Getty Images

A case history of hair in recent American politics would include the story of Bill Clinton’s $200 haircut in Air Force One at Los Angeles International Airport.

Gerry Broome/AP, file

John Edwards may never live down his politically ill-advised $400 wash and trim.

Bullit Marquez/AP

Hillary Clinton told a Yale audience in 2001, only half-joking. “Pay attention to your hair, because everyone else will."

Darren Abate/AP

Texas Governor Rick Perry is clearly the man to beat, the Jabba the Hutt of Great Hair.

Evan Vucci/AP, file

Newt Gingrich may be more known for his oddball retro do.

Pablo Martinez Monsivais/AP

The Obama-no-fro has been graying from Day One, as is to be expected.

John Raoux/AP

Veep Joseph Biden’s hair transplant from hell is beneath contempt. He wanted to be president once, and saw that a bald man hasn’t been elected to the White House since Dwight D. Eisenhower in 1956.

Chuck Burton/AP

Memo to senatorial wannabe Elizabeth Warren: “Little House on the Prairie’’ went off the air in 1982.

Charles Dharapak/AP

Senator Scott Brown has a terrific mane of sandy brown hair.

Barry Chin/Globe Staff

Former Massachusetts governor William Weld's carrot top is still ablaze.

The Boston Globe

Former governor Paul Cellucci has always been superbly endowed, hair-wise.

Bill Greene/Globe Staff

Former gubernatorial candidate Charlie Baker has also consistently had a head of finely groomed hair.