Republicans would probably like to impeach Obama for any number of reactionary reasons. But, whatever their motives, Congressman Jones’ resolution is solidly grounded in both international law and the U.S. Constitution. The wording is impeccable, and should have emanated from the Congressional Progressive and Black Caucuses, rather than the Republican Right.
The resolution defines “the use of offensive military force by a president without prior and clear authorization of an act of Congress” as constituting “an impeachable high crime and misdemeanor,” a violation of Congress’s exclusive power to declare war.”
Jones says his action is a direct response to an exchange between Obama’s Secretary of Defense, Leon Panetta, and the far-right Alabama Senator Jeff Sessions. Regarding the use of military force against Syria, the Secretary said the “goal would be to seek “international permission” and then inform Congress – but not necessarily to ask permission from the other branch of government. In other words, congressional approval of U.S. wars is optional – not mandatory – for this president.
-- Glen Ford, "Obama Richly Deserves Impeachment for War Policies, But Only a Few Dare Say So -- and Most of Them are Republicans" (Black Agenda Radio -- link is text and audio).