Rep. Frank Wolf (R-Va.) on Thursday urged President Obama to do more to combat the killing of Christians and other religious minorities in Iraq.
In a letter to President Obama, Wolf said the Obama administration's creation of the Atrocities Prevention Board in his first term had done little to stop genocide.
"It is now clear to the nation and the world that your words were hollow; your 'presidential directive' apparently was nothing more than a token gesture," Wolf added.
Wolf warned Obama would regret not trying to stop the violence in Iraq.
"Your conscience will haunt you long after you leave office," Wolf said.
The Virginia Republican compared the situation in Iraq to the Rwandan genocide in the 1990s.
"Much like President Clinton has deeply regretted his failure to stop the genocide in Rwanda in 1994, I believe you will come to regret your inaction for years to come," Wolf said.