New Hampshire political tour

The Red Arrow Diner in Manchester has fed several presidential candidates looking for photo ops. The diner has been open since 1922.  (Christopher Reynolds / Los Angeles Times)

The Labor Day parade in Milford gives locals a chance to see the candidates. On this day, Barack Obama (D-Ill.), Mitt Romney (R-Mass.) and Christopher J. Dodd (D. Conn.) rode by.  (Christopher Reynolds / Los Angeles Times)

Mitt Romney and Barack Obama greet each other at a parade in Milford, N.H.  (Christopher Reynolds / Los Angeles Times)

John Edwards listens as Barack Obama responds to a question during a presidential debate held at Dartmouth College in Hanover, New Hampshire.  (CJ Gunther / EPA)

Supporters cheer presidential hopefuls on the Green at Dartmouth College.  (Darren McCollester / Getty Images)

Democratic presidential hopefuls greet the audience before a debate held at Dartmouth College.  (CJ Gunther / EPA)

Kay Barlow, a voter who came out from Omaha to participate in pre-primary events, asks Sen. John McCain (R-Ariz.) a question at a fire station meeting in Bow, N.H.  (Christopher Reynolds / Los Angeles Times)