"Senate President Stan Rosenberg's decision to step down from the Presidency for the duration of the impending investigation is responsive to the Senate's need to move forward and will aid in the investigation and the ongoing operations of the Senate", Tarr said in a statement.
The Massachusetts Senate plans a special session to discuss sexual misconduct allegations lodged against the husband of Democratic Senate President Stan Rosenberg.
Democratic State Senator Barbara L'Italien of Andover, appearing on a Sunday morning talk show on WCVB-TV, called on Rosenberg to step down during the investigation.
"And I think it's really important for the Senate, as soon as possible, to conduct a thorough investigation of the allegations", Baker said. The men, who were not named by the Globe, said they did not report the alleged incidents partly because they did not want to alienate the powerful Senate leader.
Some lawmakers have questioned the effectiveness of a Senate probe, pointing out that the body doesn't have jurisdiction over Hefner as a private citizen. They have said they will hire an independent investigator. Sonia Chang-Diaz, D-Jamaica Plain.
" He's bought himself some time, but there are so many mitigating factors here", said Cignoli.
Attorney General Maura Healey and Suffolk County District Attorney Daniel Conley, both Democrats, said Monday they are prepared to launch an investigation and said anyone with information should feel free to contact either of their offices.
Rosenberg that Hefner is seeking help for alcohol dependence.
The Boston Globe reported last week that four men claimed Rosenberg's husband sexually assaulted and harassed them over the past few years. The newspaper did not identify the men.
The next day, Rosenberg read a statement saying he was "shocked and devastated" by the allegations. He was elected Senate President in 2015 - the first western MA politician to ascend to one of the two top leadership posts in the legislature in 40 years.
Rosenberg is the first openly gay president of the Massachusetts Senate.
Because Hefner is not a state employee, the scope of the Senate's investigation is likely to be limited to whether his alleged actions affected the workings of the Senate.
As one of Beacon Hill's top-ranking Democrats, Rosenberg has defended what he calls the Senate's "zero-tolerance policy" for sexual harassment. The revelations led Rosenberg to pledge a "firewall" between his husband and his work in the Senate.