The issue focused on court rulings that banned medical marijuana laws in Washington and Colorado. The Justice Department said it would sue to block the laws.

The Justice Department also began efforts to sue medical marijuana businesses in California.

In court papers, the Justice Department said it had legal standing to sue because it had legal authority to sue because it said the laws violated federal law.

The Justice Department said it would sue in federal court in San Francisco.

The Justice Department said it would sue in federal