The White House withdraws President Donald Trump’s nomination of Lance Schroyer, a former Oklahoma state trooper, to lead U.S. Immigration and Customs Enforcement (ICE), according to notices reported by multiple outlets.

The withdrawals comes after criticism of Schroyer’s credentials. The Guardian reports that critics object to his limited direct experience in immigration policy and say he has no formal prior experience working in ICE. NBC News and TIME describe the White House action as occurring shortly after the nomination was announced.

TIME adds that a Republican senator blocks a confirmation hearing, contributing to the uncertainty around the nomination. Across outlets, reporting focuses on Schroyer’s background as a law-enforcement officer and the debate over whether his experience fits the role. The reports say Trump’s administration does not provide a clear explanation for pulling the nomination in available accounts, while noting how the decision follows the earlier June selection.