Should ICE agent be disciplined for arrest?

An Immigration and Customs Enforcement agent enters a restaurant to remove evidence in Cheektowaga, N.Y., Wednesday April 16, 2008. A Buffalo-area restaurant owner and nine business associates are accused of smuggling illegal Mexican immigrants into the U.S. to work in restaurants in New York, Pennsylvania, Ohio and West Virginia. (AP Photo/David Duprey) (AP2008)

Sen. Jeff Sessions, R-Ala., is demanding answers after a report surfaced that a veteran U.S. Immigration and Customs Enforcement (ICE) agent is facing punishment for refusing to release an illegal immigrant he'd arrested on multiple driving violations because his supervisors said that under the Obama administration's immigration enforcement policy, the suspect was not a 'priority target.' Should the agent be disciplined?