Protectionist (noun)

1. A person or organization that advocates or supports protectionism.
2. A person or organization that supports the protection of domestic industries through tariffs, quotas, and other trade barriers.

Origin:

From protection + -ist, modeled on words such as capitalist, socialist, etc.

Examples:

1. The President is a protectionist, he wants to protect American jobs by imposing tariffs on foreign goods.
2. The protectionist policies of the government hurt the country's economy.
3. The union leader is a protectionist, he wants to protect the jobs of American workers.
4. The protectionist argue that free trade harms domestic industries.
5. The economist is a protectionist, he believes that trade barriers are necessary to protect domestic industries.