Iran is attempting to sabotage the election campaign of former U.S. President Donald Trump through coordinated online activities, according to an American intelligence agency source who spoke to The Wall Street Journal.

The assessment revealed by intelligence officials to the newspaper differs from previous assessments suggesting that Iran seeks to act as a “chaos agent” within the United States. It now appears that Tehran is explicitly aiming to undermine Trump’s chances of being elected U.S. president, due to concerns that he would adopt a harsher stance toward Tehran.

According to the source, Iran is using “a broad network of online figures and propaganda agents to spread disinformation” and is also conducting separate, funded campaigns online aimed at hurting Trump’s electoral bid.