how does congress limit the president's war making power

Congress limits the president’s war-making power mainly through its own constitutional powers : it can declare war, authorize or refuse military force, control funding, and set legal limits on deployments. In practice, the War Powers Resolution requires the president to notify Congress within 48 hours of sending troops into hostilities and to withdraw forces after about 60 days unless Congress approves the action or declares war.

Main checks

• Declaration and authorization. The Constitution gives Congress the power to declare war, and Congress can pass an Authorization for the Use of Military Force instead of a formal war declaration.

• Spending power. Congress can restrict or cut off funding for military operations, which is one of its strongest leverage points.

• War Powers Resolution. This law was passed in 1973 to force consultation and limit unilateral military action, though presidents often test or stretch it.

• Oversight and hearings. Congress can demand testimony, investigate actions, and pressure the executive branch politically.

Why it often falls short

In recent debates, experts and reporting note that the 60-day deadline has not consistently constrained presidents, because administrations often argue they have independent authority or rely on older authorizations. Coverage this spring also showed Congress struggling to rein in presidential action, including a Senate vote that failed to halt military action without congressional approval.

Simple example

If a president orders strikes without asking first, Congress can respond by refusing to authorize the operation, voting to end it, or limiting its funding. But if lawmakers are divided, the president can often keep acting long enough to make the issue politically and legally messy.

Bottom line

Congress has real constitutional tools, but the president usually has the advantage of speed, control of the military, and political momentum. That is why war powers fights tend to hinge less on what Congress can do on paper and more on whether it can act quickly and cohesively enough to force a stop.