Sen. Robert Menendez denies allegation he hired prostitutes . The New York Times reports that the FBI has been investigating whether Menendez, a Democrat, used his office to help an alleged mistress in exchange for sex with her. It is not known whether the FBI succeeded in talking directly to Williams , but there was a very public indication this week that the agency is investigating Melgen . Tipster `` Peter Williams '' wo n't talk directly to investigators , watchdog head says . Senate Ethics Committee wo n't confirm whether it is investigating .
Sen. Robert Menendez denies allegation he hired prostitutes . The New York Times reports that the FBI has been investigating whether Menendez, a Democrat, used his office to help an alleged mistress in exchange for sex with her. Tipster `` Peter Williams '' wo n't talk directly to investigators , watchdog head says . Senate Ethics Committee wo n't confirm whether it is investigating .