LAS VEGAS (AP) — A federal jury in Las Vegas refused Tuesday to convict four defendants who were retried on accusations that they threatened and assaulted federal agents by wielding assault weapons in a 2014 confrontation to stop a cattle roundup near the Nevada ranch of states' rights figure Cliven Bundy.

In a stunning setback to federal prosecutors planning to try the Bundy family patriarch and two adult sons later this year, the jury acquitted Ricky Lovelien and Steven Stewart of all 10 charges, and delivered not-guilty findings on most charges against Scott Drexler and Eric Parker.

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