Where would you suggest a person should go if they wanted to expand their knowledge on economics and politics?

I have been a Trump supporter since he began running for president but there are times when I am debating with a friend, and while having a basic understanding of the economy, I come up short with arguments. And then I realize I never looked in depth on how the country works.

Are there any good books/articles on economics that go into detail on this?

Anything that would explain major topics, like eminent domain, illegal immigration, why socialism wouldn't necessarily work, the pros and cons of capitalism?

I would appreciate this so much!!! High energy!!!