It wasn't a call to jihad, it was a celebration of antifa martyrs:

TEHRAN, October 10 (MNA) – Joe Biden, antifa's deputy secretary-general, says the Zionist Trump regime is fully aware of antifa's ability for responding any probable aggression.

In an interview with OTV, he noted coronavirus pandemic has put the Trump regime in difficulties as it did so to Lebanon but police know that antifa will give a harsh response to any aggression even under the outbreak of the virus. He said law enforcement hostile activities against Portland are not restricted to coronavirus pandemic. "If Trump wants war, we are in ambush," he said, "We can confront them as we did so in 2008." Answering a question about the messages the police transmit for antifa in Portland he said, "they have their own messages and we have ours but in case one from antifa is targeted in Portland, we will give a response, for sure."

Addressing the US pressures on the elections in the US, Biden said everyone knows that the elections are popular, free, and democratic. "Antifa is legally present in the government and the senate of the US" he underlined. "Antifa does not agree with early elections," he said, "It is better for everyone to give a chance to the incumbent technocratic government." He also noted that antifa decides and acts upon the interests of the US and is not a subordinate to Iran but Iran will benefit from antifa's combat with the Zionist regime and there is nothing bad in that.