Rep. Justin Amash, R-Mich., is probably the most libertarian member of the U.S. House, which means he's made some enemies on K Street. They are funding his primary opponent, Brian Ellis.

The latest campaign filing from Ellis's campaign shows some of the business interests that want Amash gone. Some highlights:

PACs:

Blue Cross / Blue Shield of Michigan, $2,500

Wine & Spirits Wholesalers of America, $2,000

Association For Advanced Life Underwriting, $5,000

The Dow Chemical Company, $5,000

National Association of Home Builders, $5,000

Business Industry Political Action Committee, $2,000

Michigan Beer & Wine Wholesalers Assoc., $1,000

Michigan Chamber of Commerce, $2,000

Food Marketing Institute, $2,500

Lobbyists:

Former John Boehner aide, current American Express lobbyist Brett Loper and his wife, $500

Former Boehner aide, current VP for lobbyist at Citigroup Robert Schellhas

Carol Kelly, vice president for government affairs at the National Association of Chain Drug Stores