The Massachusetts Supreme Judicial Court ruled unanimously to uphold the state’s prohibition on corporate contributions this week.

Rick Green, the republican nominee for the state’s 3rd Congressional District seat, owns 1A Auto Inc., one of the companies asserting the ban discriminated against businesses’ right to free speech.

In upholding the ban, the Court stated allowing corporate contributions would create “a serious threat of quid pro quo corruption.”

The Massachusetts contribution ban applies to corporations and business entities but does not extend to unions or nonprofits.

Attorneys for Green and 1A have stated their intention to petition the US Supreme Court to hear the case.