As reported on Fox News, a group of protesters came toward the delegation and tried to rip the credentials off their necks and sprayed them with a toxic substance that burned their eyes and stained their clothes, delegate Rob Simmons told KMSP-TV.
One 80-year-old member of the delegation had to be treated for injuries, and several other delegates had to rinse their eyes and clothing, the station reported.
“These knuckle-heads crossed the line,” Christopher Healy, head of the Connecticut State Republican Party, told FOX News.com. “We’re for free speech, not free bleach. We respect their right to protest, but do it civilly. Pushing, shoving, spitting, throwing harmful chemicals — it’s not the American way.” 
- Anti-War Protest at GOP Convention Turns Violent Fox News, Septemeber 1, 2008