JACKSON – A group of intervenors hoping to defend Wyoming’s new abortion ban has grown from three to four, with Wyoming Secretary of State Chuck Gray joining two lawmakers and an anti-abortion advocacy group.

The intervenors are arguing that the Attorney General’s Office is offering “inadequate representation” for their interests by defending the ban on “legal grounds alone” and that allowing them to introduce evidence will expedite the case.

The proposed intervenors — state Rep. Rachel Rodriguez-Williams who sponsored the ban, R-Cody; state Rep. Chip Neiman, R-Hulett; Right...