Several terrorism researchers are saying that the Islamic Society of North America (ISNA) is breaking the law by endorsing Senator Barack Obama for president and hosting an Obama campaign booth at one of its rallies. ISNA is a non-profit organization and is therefore banned from being involved in partisan politics.

Patrick Poole, director of Central Ohioans Against Terrorism, linked to a photo of the campaign booth at his web site. The revelation that ISNA formally endorsed Obama was reported by Sean Osborne of the Northeast Intelligence Network on September 6, after a tip from Dave Gaubatz of The Mapping Sharia Project. All three researchers argue that ISNA should be investigated for breaking the law through its political activities.

ISNA has been accused by some researchers as being part of the Muslim Brotherhood, a worldwide radical Islamic movement that includes Hamas. The Department of Justice also listed ISNA as an unindicted co-conspirator in a terrorism financing case in 2007 and listed the organization as one of the groups that were, or are, part of the Muslim Brotherhood. An FBI memo published by the Investigative Project on Terrorism also reported that a source of information on Muslim Brotherhood described ISNA as one of its fronts.

ISNA has denied accusations of being involved in terrorism and says it is a mainstream American-Muslim organization.