Iowa Attorney General Brenna Bird is leading 17 states in an amicus brief supporting the Trump administration's executive order denying birthright citizenship to children of illegal immigrants.

A federal judge Thursday blocked President Donald Trump’s executive order outlawing birthright citizenship —the policy automatically giving citizenship to anyone born in the U.S.—and declared it “blatantly unconstitutional,” as legal experts widely believe the president does not have the power to change the policy on his own.