The14th Amendment was intended to correct the moral wrongs of slavery. But it has been misunderstood and reinterpreted in cases involving workdays, schools, train cars and birth control.

Trump’s order targeting the Constitution’s 14th Amendment was hit with several legal challenges by Democratic attorneys general and was blocked by a federal judge Thursday afternoon. However, the Birthright Citizenship Act, introduced by House Science, Space, and Technology Chairman Brian Babin (R-TX), seeks to make the president’s order permanent.

In the few days since he returned to the White House, President Donald Trump’s sweeping executive orders and mass pardons have shattered political and legal norms. But one order is in a category of its own.