Yes. Executive branch can access information about what the executive branch is spending.
https://www.nationalreview.com/corner/judge-chutkan-signals-that-she-will-deny-blue-states-effort-to-block-doge/
https://x.com/optimistcskeptc/status/1891844071913635850?s=46&t=Y4fVsDnz2q8uZ3VNKeco4A