Past presidents have successfully taken military action without Congress ' approval . One expert says this will result in ` ` ' ' morning quarterbacks '' in Congress . Library of Congress historian Louis Fisher called the move `` the single most important precedent for the executive use of military force without Congressional authority . '' Other legal scholars say Obama going it alone will put him on top legally and politically .
Past presidents have successfully taken military action without Congress ' approval . One expert says this will result in ` ` ' ' morning quarterbacks '' in Congress . Other legal scholars say Obama going it alone will put him on top legally and politically .