The federal government is taking Hawaii to court over its college tuition rules, a blow to students without legal status who have been paying the cheaper in-state rate.

• The Justice Department sued Hawaii over long-standing laws that let undocumented immigrants pay in-state college tuition.
• The suit argues the state rules clash with federal law.
• It also claims the policy is unfair to U.S. citizens from other states, who pay the higher out-of-state price.
• Six other states have already had similar tuition policies struck down.

Outlook: Hawaii will have to defend the laws in federal court, and the earlier rulings against other states make them hard to keep.