Explanation:

- Manipulation: The existing word is close but doesn't quite capture the full meaning of strategic, cunning schemes.

- Gimmicks: Generally refers to a trick or device intended to attract attention or serve some other purpose and doesn't fit well in this context.

- Monopoly: Means exclusive control over a commodity or service, and is not suitable here.

- Control: This word implies overcoming dominance, which isn't exactly right for the sentence.

- Intrigues: Refers to secret, cunning plans meant to achieve certain ends. It perfectly fits the context of complex political maneuverings.

- Reign: Refers to the period during which a sovereign rules, and is irrelevant in this context.

Correct Answer: Option 4 - Intrigues