Related Clues:

• ''Not me,'' for one
• Oval Office power
• A certain thumbs down
• Passing obstruction?
• Challenge to Congress
• Saying it isn't so
• Kill bills
• No comment?
• Yea opposer
• Opposi-tion vote
• Line-item item
• One of 37 cast by Bill Clinton
• One not in favor
• ''Thumbs down''
• Vocal turndown