Israeli Prime Minister Benjamin Netanyahu looks at his watch before delivering a statement at the Knesset, Israel's parliament, in Jerusalem December 19, 2018. Netanyahu said on Thursday he would not resign despite being charged with bribery, fraud and breach of trust in a corruption scandal that he denounced as an "attempted coup". REUTERS/Amir Cohen/File Photo

Israeli Prime Minister Benjamin Netanyahu speaks with Cabinet Secretary Avichai Mandelblit during the weekly cabinet meeting in Jerusalem December 20, 2015. The charges announced by Attorney General Avichai Mandelblit were the first of their kind against a serving Israeli prime minister and represented the gravest crisis in the political career of Israel's longest-serving leader. REUTERS/Gali Tibbon/Pool/File Photo

Israeli Prime Minister Benjamin Netanyahu speaks to the media at the Knesset, Israel's parliament, in Jerusalem May 30, 2019. Netanyahu, in power continuously since 2009 and before that in the 1990s, has dominated Israeli politics for a generation, decisively turning the country to the right. He has denied wrongdoing in the three graft cases, saying he is the victim of a political witch hunt. REUTERS/Ronen Zvulun/File Photo

Israeli Prime Minister Benjamin Netanyahu looks on as he arrives to review an honor guard with his Ethiopian counterpart Abiy Ahmed during their meeting in Jerusalem September 1, 2019. He is under no legal obligation to resign. But the indictment could further embolden challengers trying to dislodge him after two inconclusive elections since April, with a third election expected to be announced within weeks. REUTERS/Ronen Zvulun/File Photo

Supporters of Israeli Prime Minister Benjamin Netanyahu protest outside his residence following Israel's Attorney General Avichai Mandelblit's indictment ruling in Jerusalem November 21, 2019. The placards in Hebrew read, "Mandelblit you are getting a positive coverage this evening, tomorrow you are a suspect ". REUTERS/Ronen Zvulun

Supporters of Israeli Prime Minister Benjamin Netanyahu protest outside his residence following Israel's Attorney General Avichai Mandelblit's indictment ruling in Jerusalem November 21, 2019. The placards in Hebrew read, "Strong in security Strong in Economy ". Conviction on the charges could bring a lengthy jail term. But any trial could be delayed for months by the political crisis, and Netanyahu could try to secure parliamentary immunity from prosecution. REUTERS/Ronen Zvulun