House Speaker John Boehner said hes still pushing to revamp U.S. immigration law even after mocking fellow Republicans for not backing legislation because its too hard.

Express Scripts Holding Co. fell the most since 2012 after the company cut its full-year forecast and said it received subpoenas regarding its relationships with drugmakers.

The moves will yield $420 million in cost savings through 2017 and $300 million annually after that.

A survey of Colorado employers soon after Amendment 64 won passage in 2012 found that 21 percent had made their drug-testing policies more stringent. But 71 percent made no changes to their policies whatsoever.