Which vetoes in Congress are least common?

In Congress, the least common vetoes are those issued by the President, known as presidential vetoes, particularly the pocket veto. A pocket veto occurs when the President does not sign a bill into law within ten days while Congress is adjourned, effectively preventing the bill from becoming law without a formal veto. Additionally, congressional veto overrides, where Congress attempts to overturn a presidential veto, are also rare, as they require a two-thirds majority in both chambers. Overall, these types of vetoes are less frequent compared to standard vetoes and legislative actions.