Pro-Israeli groups have suffered a major defeat in a US court after a federal judge dismissed a lawsuit against the American Studies Association’s (ASA) resolution to endorse the call to boycott Israeli academic institutions as part of the Boycott, Divestment, and Sanctions (BDS) movement.

On Monday a district court in Washington threw out the lawsuit against ASA, which is the oldest scholarly organisation devoted to the interdisciplinary study of US culture and history. The federal judge ruled that the anti-BDS plaintiffs were unable to explain how they were injured by the boycott, a requirement for the lawsuit to go forward.

The ruling is a significant victory for human rights campaigners and a blow to efforts by Israel lobby groups to use courts to harass, intimidate and silence supporters of Palestinian rights in US universities – a tactic known as lawfare. It’s also a major boost for Americans sacked from their jobs on the back of anti-BDS legislation, denounced by critics as unconstitutional.

Pro-Israeli group, the Louis D. Brandeis Centre, filed a lawsuit against ASA in April 2016 over its resolution to boycott Israeli academic institutions. The lawsuit argued that in adopting the resolution, which was voted on by an overwhelming democratic majority, the ASA operated beyond its corporate charter and caused the plaintiffs to “suffer significant economic and reputational damage.”

READ: Israel labels BDS activists ‘terrorists in suits’ in new smear campaign

In the court’s 20-page ruling, US District Judge Rudolph Contreras wrote that the pro-Israeli group had “danced around key issues” and was unable to show that they had suffered enough monetary damages to warrant a federal case.

The judge found that at most, the individual plaintiffs could seek damages of a few hundred dollars to cover membership dues they allege were misappropriated, but they would have to find some other venue to pursue their claims.

Radhika Sainath, senior attorney with the civil rights group Palestine Legal, summed up the courts judgement saying that “the court basically said, in no uncertain words, that the plaintiffs suing ASA lied when they claimed to have ‘suffered significant economic and reputational damage’.”

“But, as the court explained, ‘nowhere’ in the lawsuit could the plaintiffs explain what that damage was. It didn’t pass the smell test,” she added.

Timeline: International attempts to boycott BDS

One of the four co-defendants, Dr Stephen Salaita, an outspoken advocate of Palestinian rights who was fired from the University of Illinois at Urbana-Champaign for tweets criticising Israel’s 2014 assault on Gaza, said after the verdict: “I’m thrilled that this baseless case has been dismissed. It served no purpose other than persecuting those who dare to criticise Israeli policy and seek to end the occupation through peaceful means,”

Another co-defended Wesleyan University Professor Kehaulani Kauanui denounced the lawsuit as a politically motivated attempt to supress free speech. “The Brandeis Centre did not hold back its clear intent to punish me for standing up in solidarity with Palestinians and to deter others. They don’t call it lawfare for nothing.”

The court’s decision comes in the context of a broader federal assault on BDS for Palestinian human rights. On Tuesday, the US Senate passed a measure that would criminalise politically motivated boycotts of Israel across the US.