They have to find funding for the Trump weekends at $ 10,000,0000 a pop; plus the millions for keeping the family in NYC. Then there are the Trump children running the Trump Enterprises all over the world where they have to have security. Trips such as  attending the opening of  a new Trump Golf course in Dubai.  That was only $ 100,000 for a few days to protect Junior. The money has to come from someplace so cutting programs is the conservative solution. 

Lets face it cutting say one new F35 out of several hundred that are to be purchased,  might save millions but it would certainly lower our military preparedness to near extinction.