On Saturday, Gaza ceasefire talks were down to the wire, and President-elect Donald Trump's Middle East envoy wanted to hash out the deal once and for all with Benjamin Netanyahu, but the Israeli leader's office said he could not be roused during Shabbat.

Steve Witkoff allegedly gave a "salty" reply, making it clear he didn't care if it was the Sabbath, the Jewish day of rest.

In the words of one report from Haaretz, Witkoff said Trump expected Israel to agree to the ceasefire, and "things that Netanyahu had termed life-and-death issues…suddenly vanished".

So, who is Witkoff, Trump's new man in the Middle East?

Witkoff is a Republican and a billionaire Jewish-American real estate developer. His soft, slightly nasally voice masks his reputation as a hard-charging negotiator who developed the nerve for leveraged loans as a teenager betting at the racetrack. When he was starting off in the cut-throat world of New York City real estate in the 1990s, he wore a handgun strapped to his ankle, according to a Wall Street Journal expose from the time. 

Witkoff has been praised for pushing the ceasefire across the finish line. Qatari Prime Minister Sheikh Mohammed bin Abdulrahman bin Jassim al-Thani credited him in a speech announcing the deal on Wednesday, albeit one usurped by Trump's earlier proclamation that an "EPIC" ceasefire had been reached. It is important to note that Witkoff was mentioned before the sitting Biden administration's envoy, Brett McGurk. 

The New Yorker turned south Floridian has no official training as a diplomat and his appointment epitomises Trump's disdain for traditional bureaucrats and policy wonks, who are steeped in area expertise and boast graduate degrees in international relations but lack private sector experience.

"We have people that know everything about the Middle East, but they can't speak properly…he is a great negotiator," Trump said at a press conference in January, praising his friend.

There, Trump reiterated his now infamous pledge that "all hell will break out" in the Middle East if the hostages held in Gaza were not freed by the time he takes office on 20 January. "You know what that means, do I have to define it for you," he barked at a journalist, who pressed for details.