Weiner said in court that he was first contacted by the girl in January 2016 and that for two months, he "engaged in obscene communications with this teenager, including sharing explicit images and encouraging her to engage in sexually explicit conduct, just as I had done and continued to do with adult women".
Weiner declined to speak to reporters as he left the courthouse.
Weiner agreed Friday not to appeal any sentence between 21 and 27 months in prison.
The hearing will take place at 11 am today, so we'll know more then about any prison time Weiner will get, plus whether and how long he may have to register as a sex offender. According to the report, Weiner surrendered to the F.B.I. early Friday morning.
NEW YORK (AP) - Former U.S. Rep.
Weiner cried in court as he apologized to the 15-year-old girl at the heart of the sexting case, The Associated Press reported.More news: New Aquaman photo highlights Amber Heard as Mera
Investigation of his laptop led to the discovery of a cache of emails from Democratic presidential nominee Hillary Clinton to her aide Huma Abedin, Weiner's wife.
The Daily Mail reported in September that Weiner had exchanged pictures and sexual messages with a 15-year-old girl.
Officials began to investigate Weiner over the allegations previous year, and the probe into Weiner even affected the 2016 presidential campaign.
The controversy over Clinton's use of a private email server while she was USA secretary of state dogged her throughout the campaign. Days before the November presidential election, now-former FBI director James Comey told Congress about the FBI investigation into emails between Clinton and her aides, The Times reported previous year.
In testimony to Congress two weeks ago, Comey said he felt "mildly nauseous" at the suggestion his actions may have swayed the election, but added that he had no regrets.
Weiner, who represented NY in Congress from 1999 to 2011, resigned after revelations that he was sending sexually explicit messages to multiple women. But Clinton partly blamed her election loss to Republican Donald Trump on Comey's announcement.