Sen. Rand Paul (R-Ky.) agreed with President Barack Obama’s strategy to combat the threat of Islamist militants in Iraq and Syria on Wednesday night, but criticized Obama’s methods as unconstitutional.

“It doesn’t in any way represent what our Constitution dictates nor what our founding fathers intended,” Paul, a likely 2016 presidential contender said on Fox News. “So it is unconstitutional what he’s doing.

“He should have come before a joint session of Congress, laid out his plan—as he did tonight—and then called for an up or down vote on whether or not to authorize to go to war,” Paul added. “I think the President would be more powerful [and] the country would have been more united.”

In his address to the nation Wednesday, Obama said the U.S. would expand its air campaign against the Islamic State of Iraq and Greater Syria (ISIS) and provide funding to train and arm the Syrian opposition. He also reiterated his position that he has the executive authority to do so without congressional approval but that he would welcome congressional support as a sign of American unity.

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