Israel has banned two US Congress women from entering the country for supporting an international boycott movement.
Democrats Rashida Tlaib, whose family came from the West Bank, emigrated to the United States. Ilhan Omar was also put on notice for "denying the legitimacy of Israel".
US President Donald Trump had lobbied his ally Benjamin Netanyahu to block the trip, saying it would have shown "great weakness" allowing him to continue.
He had previously targeted the two Muslim women in racist rhetoric, telling them to "return" to the "broken" countries from which they came.
Both are US citizens and Ms. Tlaib was born in America.
In what appeared to be an unprecedented move, Netanyahu blocked the visit of politicians saying it was "clear" that "the only goal was to strengthen the boycott and deny the legitimacy of Israel. ".
He added that Israel had welcomed "with open arms" 70 members of Congress belonging to the two main parties in the past and that there was "no state in the world" which is more respectful of the institution.
Israel has fought hard to fight a movement that supports boycott, divestment and sanctions against Israeli businesses, universities and cultural institutions for the country's treatment of the Palestinian people.
It passed a law allowing the ban on entry to any activist who "knowingly calls for a boycott of Israel".
But last month, Israel's ambassador to the United States, Ron Dermer, said the entry would not be denied to any congressman.
Ms. Tlaib tweeted that the decision to ban it was a "sign of weakness" because "the truth about what is happening to the Palestinians is frightening".
Ms. Omar said Mr. Netanyahu's gesture was "not a surprise" given his track record.
She added that he had "steadily resisted peace efforts, limited Palestinians' freedom of movement, limited public knowledge about the brutal realities of occupation and aligned themselves with Islamophobes like Donald Trump ".
The US president intervened a few hours earlier to demand that Ms. Tlaib and Ms. Omar "hate Israel" and "all Jews".