Minnesota Democratic Congressman Keith Ellison's ex-girlfriend, Karen Monanhan, says she firmly stands by her allegations that he physically abused her during their relationship.

The claims first came to light Saturday night when her son shared a Facebook post in which he alleged he saw a video in 2017 on his mother's computer of Karen being dragged off a bed by Ellison who was screaming at her, calling her a 'f****** b*****' and telling her to 'get the f*** out of his house.'

In an interview with ThinkProgress on Monday, Karen said she initially did not want to go public with the video or texts. So far she has released some text exchanges between herself and Ellison, but has not released the video in question.

'I didn't want to mention the video or the texts,' she said. 'I'm not here to prove to anyone. I'm just here to share my story.'

Ellison is running for Minnesota attorney general and faces a primary election Tuesday.

Monahan added, speaking about Ellison, 'You know this is true. You know what you did.'

Co-chair of the Democratic National Committee and current Minnesota Congressman vying for the Democratic ticket for Attorney General on Tuesday, Keith Ellison, is accused of dragging his ex-girlfriend, Karen Monahan (pictured together) off a bed by her feet while screaming obscenities. She is vehemently defending her accusations in interviews and on social media

Karen (pictured) has spoken publicly in interviews and on social media, telling the congressman 'You know what you did to me.' She also shared a text message exchange to a news outlet where she pointedly says to Ellison 'We never discussed — the video I have of you trying to drag me off the bed,' he did not reply to that texts message, or others after

Monahan, who is a Minneapolis political organizer, tweeted similar sentiments directed at Ellison on Sunday evening, writing that what her son posted to Facebook was 'true.'

'What my son said is true. Every statement he made was true. @keithellison, you know you did that to me. I have given every opportunity to get help and heal. Even now, u r willing to say my son is lying and have me continue to leak more text and info just so others will believe him.'

'When he [Austin] put that out, and I stand with him … it made everything about 'well, where's that, where's this? It's become about, 'she needs to prove, prove, prove,'' she continued to ThinkProgress.

'He had to sit and stay silent,' Monahan said of her son, adding that after he saw the supposed video, he texted Ellison and said, 'I know what you did to my mom. You're not the man I thought you were.'

According to texts that appear to be between Karen and Ellison, released by Karen on her Twitter account on Sunday, the Congressman expressed his concerns to her about her son reaching out to him regarding their relationship.

Ellison shared this shot of Monahan and her son Austin on Twitter in April 2016

In those texts, Ellison writes: 'Karen, when I come to drop your stuff off, what should I expect from Austin? He seems pretty upset.'

He adds, 'I'm sorry Austin feels this way... Its not appropriate for me to discuss our relationship with him. So he's just angry and yet I can't (won't) offer him any answers.'

Karen says she has been dealing with post-traumatic stress disorder for the past few years over the alleged abuse, adding 'It dang near took my life at the end.'

She also says she has braced for speculations about the veracity of her disturbing allegations against a prominent member of the Democratic party, and was ready to face public scrutiny.

'I know who I am. I know what I was going to go through,' she added. 'We aren't anywhere in society where I wasn't going to get smeared.'

'As an Iranian, as a woman of color who is an immigrant,' Monahan said, 'do you honestly think I'm gonna get validation from a society who's been telling me since I was young that I don't have a voice?'

Karen has been tweeting about the abuse, without mentioning Ellison by name, for more than a year, often replying to Ellison himself.

Monahan and Ellison in happier times. A tweet shared by Ellison in September of 2016 at event

Ellison denied the allegation of physical abuse. A spokesman for his campaign also denied the congressman had sent threatening text messages.

'Karen and I were in a long-term relationship which ended in 2016, and I still care deeply for her well-being,' Ellison said in a statement. 'This video does not exist because I have never behaved in this way, and any characterization otherwise is false.'

Minnesota Public Radio News reported Sunday that it reviewed more than 100 text and Twitter messages between Ellison and Monahan that showed the two communicating over months after their breakup, including coordinating her getting her things from his house.

MPR said the tenor was sometimes friendly, sometimes combative. MPR said in one message, Monahan told Ellison she planned to write about their 'journey' and Ellison warned her not to, calling it a 'horrible attack on my privacy, unreal.'

MPR reports that in one particular screenshot of a text message from December 2017, Monahan confronts Ellison for the first time that a video exists of the alleged abuse.

'We never discussed — the video I have of you trying to drag me off the bed,' Monahan wrote to Ellison, quoting abusive language he allegedly shouted at her.

Ellison did not respond to that message or others that followed.

Ellison, who is divorced, is a six-term congressman and a leader within the Democratic Party.

Co-chair of the Democratic National Committee and current Minnesota Congressman vying for the Democratic ticket for Attorney General on Tuesday, Keith Ellison, is accused of dragging his ex-girlfriend, Karen Monahan (right) off a bed by her feet while screaming obscenities. He denies the allegations against him & denies the existence of a tape showing such an incident

Austin Monahan's full post, alleging he saw a video of his mother being dragged off a bed

He became deputy chairman of the Democratic National Committee last year after falling just short of the top job. He announced this summer he would leave Congress after six terms representing the Minneapolis area and run for the state's open attorney general's office.

With a huge fundraising advantage and star power over his opponents - including a visit from Vermont Sen. and 2016 presidential candidate Bernie Sanders - Ellison was considered the heavy favorite heading into Tuesday's primary.

Ellison's Democratic opponents pounced on the allegations.

State Rep. Debra Hilstrom circulated the initial Facebook post Saturday night, calling the allegations 'troubling.' Tom Foley, a former county attorney, called on any video or messages to be turned over to law enforcement for an 'immediate investigation.'