Senate Republicans divided over repeal of Iraq War authorizations.

Senate Republicans are warning House Speaker Kevin McCarthy not to hold a vote on a Senate-passed bill repealing authorization for the use of military force in Iraq without making major changes to it, laying bare the growing Republican divide over national security. McCarthy faces a tough decision after 18 Republican senators voted with 45 Democrats and three Democratic-aligned Independents Wednesday to repeal the war authorizations Congress passed in 1991 and 2002, sending it to the House. Republicans are also deeply divided over curbing defense spending as part of a deficit-reduction deal with Democrats.