Indiana Attorney General Todd Rokita and Secretary of State Diego Morales are suing the Trump administration over citizenship information. The lawsuit stems from a request last fall that the federal government verify the citizenship of more than half a million voters.

Several voter advocacy groups sent a formal letter to Indiana Secretary of State Diego Morales and Attorney General Todd Rokita, opposing their recent move that questions the citizenship of more than half a million registered voters.

Indiana Secretary of State Diego Morales said questioning the citizenship of half a million registered voters is not about trying to remove people from the voter rolls. Rather, it’s setting the stage for local officials to challenge voters at the polls this fall.