No. The party that espouse a classical laissez faire is the Libertarian party.

The rich man espoused the poor woman.

Espouse also means to adopt a cause, a belief, or a way of life:

You may espouse the opinions of the political pundits but I'll continue make my own choices.

No politician I American will openly espouse racism, although some behave and speak in racially prejudiced ways.

Marilyn was able to get her ideas across to other people was legendary. She was able to espouse her ideals in an understandable way.

to espouse = 1. to take someone as your wife or husband

2. to adopt and usually show support for political ideologies, religious beliefs, etc. E.g. The democratic candidate espouses wide-reaching health-care reform.