“Some Democrats said that Congress has not passed an authorization for the use of military force specifically in Syria,” reports CNN.

Rep. Ro Khanna (D-Calif.) said “there is absolutely no justification for a president to authorize a military strike that is not in self-defense against an imminent threat without congressional authorization … we need to extricate from the Middle East, not escalate.”

Sen. Tim Kaine (D-Va.) agreed, calling for an immediate congressional briefing and saying “offensive military action without congressional approval is not constitutional absent extraordinary circumstances.”

Republicans, however, were seemingly largely pleased with the move. Rep. Michael McCaul (R-Texas), the top Republican on the House Foreign Affairs Committee, called the U.S. response a “necessary deterrent” to tell Iran that attacks on U.S. interests “will not be tolerated,” reports CNN. As Fox News notes, Republican Sens. Marco Rubio (Fla.) and Lindsey Graham (S.C.), among others, also applauded the strike, calling it “proportional.”