Related Clues:

• Give a thumbs down to
• 'Ain't gonna happen!'
• Nix, presidentially
• Refuse to approve
• Governor's turndown
• Give a thumbs-down
• No
• Highest power?
• Nix a bill
• Bill squelcher
• White House rejection
• Nix from the governor
• Power to kill a bill
• Obama cancellation
• Keep from going through