The three-member Marion County Election Board voted Wednesday to investigate whether a Diego Morales campaign ad violates Indiana election law.

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.