WASHINGTON (AP) — An informal adviser to Republican Mitt Romney is representing U.S. Immigration and Customs Enforcement employees suing the Obama administration over its plan to stop deporting many young illegal immigrants and grant them work permits.

Kris Kobach, the Kansas secretary of state, filed the lawsuit on behalf of 10 ICE employees Thursday in federal court in Dallas. The 22-page filing contends that the Obama administration’s Deferred Action for Childhood Arrivals plan violates federal law and forces ICE employees to break the law by not arresting certain illegal immigrants. Homeland Security Secretary Janet Napolitano and ICE Director John Morton are named as defendants.