MIAMI -

A federal judge is being asked by a Florida-based subsidiary of a Brazilian conglomerate to block a new state law barring companies from getting government contracts if they also do business in Cuba or Syria.

The challenge was filed by Odebrecht Construction Inc. The Coral Gables-based company is a subsidiary of a Brazilian conglomerate that has a separate unit working to expand Cuba's port of Mariel.

During a hearing Monday, the firm will ask the judge to issue a temporary injunction blocking the law from taking effect as scheduled July 1. The company says it could be prevented from bidding on billions of dollars in government contracts.

The lawsuit claims the law is unconstitutional because foreign policy powers rest solely with the federal government.