Lawmakers from both sides of the aisle told Trump energy nominees that the federal government should not preempt state policies on nuclear and renewables in a wide-ranging hearing Thursday morning.

Toshiba’s nuclear development subsidiary Westinghouse Electric filed for Chapter 11 bankruptcy in March, throwing the future of two nuclear projects into question. 

Lawmakers will take up a bill allowing regulators to adjust the rates of an aluminum smelting plant and possibly open the door for future rate negotiations with Ameren's industrial customers. 

The utility previously said it would reach a decision on whether or not to proceed with construction on the nuclear plant by June.

Supporters say safety is the issue, but opponents of the bill suspect politics and fears over base closures.