What can the President do if Congress presents him with a bill that he doesn’t like? If the President chooses this option, is there anything Congress can do about it?
The President can veto the bill if he doesn't want it to pass as a law, but Congress does have the power to "override" that veto if they feel it is necessary. "Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate. (Usually an act is passed with a simple majority.)" - National Archives (.gov)