Arizona Democrat Senator Ruben Gallego was involved in consensual sexual relationships with at least two House staffers while he was unmarried, according to a New York Post report.
The report noted that the relationships lacked any allegations of harassment, though his behavior was described as highly flirtatious.
The revelations come amid discussions about Gallego's potential presidential candidacy in 2028.
Current congressional regulations do not prohibit relationships between lawmakers and staffers.
However, a push to ban such interactions has gained traction following sexual assault claims against former Congressman Eric Swalwell.
The report follows a complaint filed by Republican Congresswoman Anna Paulina Luna of Florida, who accused Gallego of campaign finance violations and inappropriate advances.
The Senate Ethics Committee recently dismissed the complaint after finding no evidence of wrongdoing.
Gallego dismissed the allegations as "right-wing conspiracies."
The dismissal of the misconduct claims has not completely cleared the political landscape for the lawmaker.
Some observers believe Gallego still maintains his aspirations for the presidency despite the ongoing controversies.
