Knesset Speaker Yuli Edelstein (Likud) said Sunday night that he would announce the date for presidential elections on Monday, following consultations with his staff. The expected date is sometime in June.

The race to find a successor to incumbent President Shimon Peres has been marred by scandal and controversy over the past several months.

Earlier this month, Israeli media reported that Prime Minister Benjamin Netanyahu was aiming to postpone presidential elections for up to six months, during which time he could push through a law abolishing the presidential office — an idea quickly shot down by Finance Minister Yair Lapid of Yesh Atid, a key coalition partner. Lapid’s rejection was considered likely to doom the initiative.

Last week, in the latest scandal to hit the increasingly dirty presidential race, a negative campaign video targeting candidate Reuven Rivlin (Likud) was sent anonymously via email to all of the 120 Knesset members, who select the president..

The video purported to show the Likud candidate grouped alongside “top machers” — a Yiddish word that can be roughly translate as “wheeler dealer” — including the recently sentenced Ehud Olmert, the incarcerated former president Moshe Katsav, and former finance minister Avraham Hirchson, who served time for embezzlement. The clip also features news clippings about Rivlin from the past, and features the caption, “How much does it cost to buy a Knesset member in Israel?”

“It’s unfortunate that the slander campaign is continuing, with the use of cheap and lackluster means,” a statement from Rivlin’s office said in response. “Reuven Rivlin won The Movement for Quality Government in Israel’s ‘Knights of Good Government’ award for his honesty and decency. We find the testimony of MQG to be more trustworthy than a warped and biased video.”

Labor MK and presidential hopeful Binyamin Ben-Eliezer called for an investigation to unmask the creators and sponsors of the video.

“There is a smear campaign going on against the candidates,” he said. “Instead of conducting a transparent, respectable, and fair election, there are anonymous sources — it is not clear what their motives are and who stands behind it — who are trying to damage the candidates and their reputation.”

Rivlin is the frontrunner and Ben-Eliezer another contender in the upcoming presidential election that has seen a slew of allegations against its primary hopefuls.

Ben-Eliezer was recently accused of gambling in London between 1999-2002, during his tenures as deputy prime minister, communications minister, housing minister and defense minister.

Labor MK Binyamin Ben-Eliezer. (photo credit: Miriam Alster/Flash90)

Labor MK Binyamin Ben-Eliezer. (photo credit: Miriam Alster/Flash90)

Ben-Eliezer later said he was certain one of the other presidential candidates had leaked the information to Channel 2, and said private investigators had been hired to dig up dirt about him.

“When you have nothing to [hide], they can continue searching from now indefinitely,” he told Army Radio.

Another candidate, National Infrastructures Minister Silvan Shalom (Likud), recently faced a public accusation that he sexually assaulted a woman who worked under him 15 years ago when he served as science minister. Following an investigation, police closed the case, but pundits say Shalom all but lost his shot at winning the presidency.

Shalom called the accusations part of a political conspiracy aimed at removing him from the race.

Two outside candidates looking to tap into the public’s aversion to professional politicians have thrown their hats into the ring. However, both Dan Shechtman, a Technion professor who won the 2011 Nobel Prize in chemistry, and Dalia Dorner, a retired Supreme Court justice, appear to have little chance of winning.

Three other outside candidates are Meir Sheetrit, a former finance minister; Dalia Itzik, another former speaker of parliament; and energy entrepreneur Yosef Abramowitz.

Times of Israel staff and AP contributed to this report.