(Committee Chairman U.S. Representative Darrell Issa (R-CA) holds a House Oversight and Government Reform Committee hearing on alleged targeting of political groups seeking tax-exempt status from by the Internal Revenue Service (IRS), on Capitol Hill in Washington, May 22, 2013. REUTERS/Jonathan Ernst)

(Committee Chairman U.S. Representative Darrell Issa (R-CA) holds a House Oversight and Government Reform Committee hearing in Washington, May 22, 2013. REUTERS/Jonathan Ernst)

U.S. Representative Darrell Issa sharply criticized a California gubernatorial candidate from the Republican Tea Party faction who erroneously suggested a rival of Indian descent was supportive of Islamic Sharia law.

The squabble on Thursday among fellow Republicans in the most populous U.S. state comes in a race where Democratic Governor Jerry Brown has shown a commanding lead in opinion polls.

Earlier this week, a post on Republican candidate Tim Donnelly’s Facebook page took aim at another Republican gubernatorial candidate, Neel Kashkari, for participating in a 2008 seminar titled “Islamic Finance 101″ while he was a U.S. Treasury official.

“Given the recent stories and protests about the outrage of the discriminatory nature of Sharia law, we’re horrified that Kashkari would support Sharia anything,” the post said.