California Governor Gavin Newsom has escalated his criticism of Israeli Prime Minister Benjamin Netanyahu, warning that the annexation of the West Bank would effectively transform Israel into an apartheid state.

Newsom, a prominent figure in the Democratic Party, stated that while he has long supported the state of Israel, he is deeply concerned by Netanyahu's actions over the past two years.

The governor's comments mark a significant hardening of tone from a key US political leader, reflecting growing domestic pressure on the Israeli government regarding its settlement policies.

The remarks come amid heightened scrutiny of Israel's territorial expansion in the West Bank.

Recent reports from Israeli non-governmental organizations have documented a significant acceleration in settlement construction, with critics arguing that the pace of land acquisition amounts to a de facto annexation.

Newsom's intervention underscores the political risks Netanyahu faces not only from international bodies but also from influential figures within the United States, a critical ally.