Silly me, and here I thought foreign policy was the purview of the president - at least according to Article II of that Constitution thing...
Anyway, foreign aid has bought us a lot of support and good with countries like N. Korea, Iran, etc....
Trump knows the final product won't reflect what was proposed. Congress will split the difference, more or less, and next year Trump will cut a little more and the same the year after that. That is how it works. It still will be better than what it is at the moment.