More House lawmakers are warning President Barack Obama he needs to articulate a broader anti-terrorism strategy — and consult with Congress on that plan — before ramping up military action against anti-U.S. jihadists in northern Iraq and Syria, Roll Call reports.  

Armed Services Chairman Howard “Buck” McKeon, R-Calif. is the most recent member to release such a statement after the group known as the Islamic State of Iraq and Syria executed American photojournalist James Foley last week.  

“I challenge the President to engage Congress,” McKeon said in his statement Wednesday. “I’m willing to work with him.”  

McKeon added, however, that while a plan to address ISIS’s growing power “may well require additional authorities from Congress … speculation about that before the President has even offered a strategy is putting the cart before the horse.”