in reference to another thread:
when congress sends a bill to the prez, the prez can do one of four things.
1)sign the bill into law
2) not sign the bill, the bill will then bcome law 10 days after the prez recieved it, not counting sundays. (ref. US constution)
3) veto the bill, congress can then override the veto by a 2/3 mojority vote.
4) send the bill back to congress and ask for revision.