"I fight for these issues and the people of our country every single day… That's who I am, and I am not going anywhere," Menendez, original sponsor of the Ukraine Freedom Support Act and other anti-Russia legislation, told reporters Friday.
Reports emerged earlier that the Department of Justice (DOJ) was moving ahead with criminal corruption charges against the New Jersey lawmaker.
The DOJ press secretary Peter Carr told Sputnik that he is not in a position to confirm or deny this.
Charges against Menendez revolve around his relationship with Florida ophthalmologist Salomon Melgen.
According to the US government watchdog Center for Responsive Politics, Melgen contributed $700,000 to Menendez's 2012 US Senate race through an intermediary campaign funding channel. The senator also allegedly received gifts and multiple trips on Melgen's private jet.
Menendez's office said that Melgen is one of the senator's "closest personal friends," and that the office would not respond to anonymous allegations about that relationship.