Watchdog groups urge Senate to investigate Samuel Alito over oil stock conflicts

Groups say supreme court justice, who owns oil stocks, may be violating ethics codes by participating in certain cases

Supreme court justice Samuel Alito, who owns stock in oil companies, may be violating court ethics codes by participating in certain cases that could benefit big oil, government watchdog groups say.

In a Thursday letter, a coalition of watchdog organizations called on the Senate judiciary committee to investigate Alito, the sole supreme court justice with holdings in energy companies.