Story highlights Donald Trump said Wednesday he will release a detailed tax plan next week

He promised that his plan would have big cuts for the middle class

Washington (CNN) Donald Trump will release his tax plan Monday morning, his campaign manager said Saturday.

Corey Lewandowski also told CNN that the plan will be published on Trump's website.

On Wednesday, Trump said his plan will call for middle class tax cuts and hikes for hedge fund managers.

"(It) will be very long on policy and will be a great plan, with a major reduction in taxes for the middle class," Trump said at a town hall meeting in Columbia, South Carolina, at the University of South Carolina.

Trump promised that his plan would be "great" for middle income residents and businesses, but not so much for hedge fund managers, who he has turned into political punching bags of late.

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