As big business grew in the united states, the government attempted to protect corporations. what argument did it use to protect corporations?

The government uses the argument of personhood to protect corporations.

The case was a u.s. supreme court decision that defined the scope of the u.s. congress's legislative power and how it relates to the powers of american state legislatures. the dispute in mcculloch involved the legality of the national bank and a tax that the state of maryland imposed on it.