Conservatives Lash Out at Actor Bradley Cooper for Appearance at Democratic National Convention

Critics registered their displeasure on Twitter.

ByABC News
July 29, 2016, 8:40 AM

— -- Political conservatives have raised an outcry online after seeing “American Sniper” star Bradley Cooper among attendees at the Democratic National Convention in the actor's hometown of Philadelphia.

Cooper earned critical acclaim and an Oscar nomination for his turn in the 2014 hit film about Chris Kyle, a former Navy SEAL who was killed at a Texas gun range in 2013, allegedly by a former U.S. Marine he was trying to help.

Kyle -- who served four tours in Iraq and was considered the deadliest sniper in U.S. military history -- has been held up as an icon of conservative ideals.

Fans of Cooper's portrayal of Kyle took to Twitter to register their extreme displeasure at seeing the 41-year-old actor at the event on Wednesday night.

Some even called for a boycott of Bradley, while others on Twitter pointed out that playing a character in a movie didn’t require the actor to actually share the character’s views.

Cooper donated $750 to Hillary Clinton's 2008 presidential campaign. He also attended a White House State Dinner in 2014.

The actor did not immediately reply to ABC News' request for comment.