NBC News called presumptive Republican nominee Donald Trump’s most recent attacks on former president Bill Clinton’s alleged past sexual transgressions "another low" in the 2016 presidential campaign on Tuesday.

NBC correspondent Peter Alexander reported on the most recent spat between Trump and Democratic presidential frontrunner Hillary Clinton on the Today show when he detailed the real estate mogul’s most recent allegations against the former first couple.

"It’s only May, but this race is hitting another low: Donald Trump’s latest attack on the Clintons, revisiting decades-old allegations of sexual misconduct against Bill Clinton that Fox News host Bill O’Reilly called tawdry," Alexander said.

Alexander described how Donald Trump is defending his "relentless" attacks on both Hillary and Bill Clinton, arguing he has to fight back and respond to their actions as "dirty players."

"The latest attack, seemingly unprovoked, digging up President Clinton’s old sex scandals, including the voice of Monica Lewinsky," Alexander said.

He was describing Trump’s most recent attack on the Clintons, an Instagram video released Monday that includes the voices of two women who have accused Bill Clinton of sexual assault.

"This salacious video posted by Trump on Instagram, superimposing Clinton over past accusations of sexual misconduct that Clinton has repeatedly denied," Alexander described.

The NBC report then said that three of Bill Clinton’s accusers—Paula Jones, Kathleen Willey, and Juanita Broaddrick—appeared on conservative commentator Sean Hannity’s radio show Monday.

"I’m so appreciative to Donald Trump for bringing it – I couldn’t. It’s very difficult for me to bring it forward because it’s still too painful," Broaddrick told Hannity.

Hillary Clinton’s aides insist that she will not "follow Trump into the gutter," according to Alexander, who played a clip of Brian Fallon, national press secretary for Hillary For America, saying on Bloomberg that "Hillary Clinton is not going to go for that."

Trump has also tried to portray the former first lady as "Crooked Hillary" on the campaign trail, citing controversy over foreign donations to her family’s foundation and similar stories. The presumptive GOP nominee has also said Clinton is complicit with her husband’s alleged sexual assault by being an enabler who went to great lengths to discredit his accusers’ accusations, points that the Clintons reject.