Police use their bikes to push back a group of protesters during a rally at the Republican National Convention in St. Paul, Minn., Monday, Sept. 1, 2008.
Thousands gathered near the Republican Convention site in St. Paul, Minn., on Sept. 1, 2008, to protest the Iraq war, President Bush and Republican presidential candidate John McCain.
A protester smashes a window during an anti-war rally at the Republican National Convention in St. Paul, Minn., Monday, Sept. 1, 2008.
Police use pepper spray on a woman as she walks towards them with a flower during a rally at the Republican National Convention in St. Paul, Minn., Monday, Sept. 1, 2008.
One of the protesters wears a straight jacket and a mask to show his opposition to Republican presidential candidate John McCain.
Melida Arredondo Alexander brought a coffin to the protest, as well as a photograph of her stepson, Corporal Alexander Arrredondo, who was killed in Iraq at age 20.
A protester kicks a smoke bomb during a protest at the Republican National Convention in St. Paul, Minn., Monday, Sept. 1, 2008.
Here is more of the scene at the antiwar protest. The rally took place on the grounds of the Minnesota state capitol building in St. Paul.
Police officers shoot rubber bullets during a protest at the Republican National Convention in St. Paul, Minn., Monday, Sept. 1, 2008.
More antiwar protesters at the rally on Sept. 1, 2008, the first day of the Republican National Convention, in St. Paul, Minn.
Another man voices his opposition to the Iraq war at the protest near the Republican convention in St. Paul, Minn.
Among the crowd were several different groups protesting causes beyond just the Iraq war.
This ice sculpture appeared on the edge of the antiwar rally on the grounds of the Minnesota state capitol building in St. Paul, near the site of the Republican National Convention.