You must be referring to the Dodd-Frank repeal, which was a good thing actually. The reason there was an economic crisis in 2008 is because of government regulation, adding more regulations is not going to solve the issue.
It's really just different ideologies of how to fix the issues with the country, and make it better.
Uhmmm... the economic crash in 2008 was because of the repeal of government regulations which allowed for mergers that up to that point were not allowed under Glass-Steagall - or rather the addition of Gramm-Leach-Bliley Act that overwrote 2 key provisions of it -- allowing for merging banking and securities firms together. Dodd-Frank added oversight to the new conglomeration of financial services, and the industry argues that it isn't needed because of BASEL III, an industry self-oversight tool.