Disgraced former Congressman Anthony Weiner could soon be indicted for exchanging sexually crude and revealing messages with an underage, 15-year-old girl.

A federal grand jury is expected to start hearing evidence about Weiner’s explicit text messages with the out-of-state teenage girl by the end of October, according to the New York Post.

Legal experts have said Weiner’s latest sexting scandal could get him slapped with a federal charge of sexual exploitation of children, which carries a minimum of 15 years in the slammer and a maximum of 30. It was unclear where the grand jury will convene. Weiner is under investigation by federal authorities in both Manhattan, where he lives, and North Carolina, the home state of the 15-year-old girl to whom he sent crude messages and shirtless selfies.

Weiner’s pseudonym online used to be "Carlos Danger" until he switched to "T Dog" during some of the sexting sessions with the teenage girl.

The girl’s father was furious at the ex-Democratic congressman and called his conduct "absolutely criminal."

"I’ll be in jail if I come into contact with him," the father added.

Weiner’s sexting addiction first cost him his seat in Congress in 2011 and then his comeback mayoral bid in New York City two years later. Weiner’s sexting also tore apart his family, the Post reported.

His wife, top Hillary Clinton aide Huma Abedin, also announced she was leaving him after the Post exclusively revealed in August that he sent another woman a lewd crotch shot that showed their then-3-year-old son curled up next to him in bed.

Weiner also became an issue in the 2016 presidential campaign because he donated $550 to Democratic presidential nominee Hillary Clinton. Her Republican opponent Donald Trump called on Clinton to return the donations due to the "extremely disturbing" allegations.

Despite Weiner being a Democrat, he has been mocked and criticized by his fellow party members in New York, the Post noted.