Texas is asking the Supreme Court for more time to answer the Obama administration's immigration appeal, a delay that probably would prevent the plan to shield millions of immigrants from deportation from taking effect during Barack Obama's presidency.  

If the justices agree to the state's request that was filed Monday, the administration's plan that mainly affects the parents of U.S. citizens and lawful permanent residents would miss the court's informal deadline for a decision by the end of June.  

Unless the court were to take the rare step of scheduling an argument in May, the issue would not be heard by the justices until the fall or decided before spring 2017.  

Texas says in its letter to the court that the administration is opposing the request for a 30-day delay.