Iran is acting this way because Biden does not pose a serious or credible threat to them.
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Adam Kredo
@Kredo0
BREAKING: Former Trump Iran Envoy Facing 'Serious and Credible' Threats, State Dept Discloses in Non-Public Notice to Congress -- Warning comes as Iran vows to assassinate Trump & former top officials, including fmr Iran envoy Brian Hook freebeacon.com/national-secur