In a ruling against the Bush administration, no less.
Mexico said American officials violated the 1963 Vienna Convention. when they failed to allow the citizens of another country access to its representatives after arrest. The world court agreed.

But in a 6-3 ruling March 25, the U.S. Supreme Court said the president overstepped his bounds when he ordered states in a memo to abide by the world court's ruling. The high court said a president must consult Congress before issuing an order based on a treaty.
Good decision- the "world court" has no legal jurisdiction over Texas courts.