The trade-off between defense and social spending has sometimes been referred to as a choice between "guns and butter," meaning that social spending suffers when defense costs rise. who has the power to influence foreign policy by controlling funding in the u. s. budget?

The Congress

Explanation:

The Congress has the power to influence foreign policy by controlling funding in the U.S. budget? For example although the President has greater control over defense and  foreign policy, the congress through the senate influences such powers by being the ones to advice and consent to the appointments of ambassadors by the president. Aside this, the constitutional powers on government spending  lies with Congress

can you show the map , i'll be able to update my answer

you so !