I only knew him by reputation. The Washington Metropolitan Police Department confirmed to Newsweek that it had opened an investigation.
Villa said the incident was "completely demeaning and shocking", and that a detective advised her to file an assault report instead of a harassment report after hearing her side of the story. "He broke my trust".
Villa, a singer, alleges that Lewandowski slapped her bottom twice at a party at the Trump International Hotel in Washington, DC, on November 28.
She said he replied: "Go ahead, I work in the private sector", before hitting her again.More news: Labour MPs tell Chancellor Philip Hammond to publish his Brexit impact assessments
'I was initially fearful to come forward with this, ' she said, adding that she did not want to bring shame or embarrassment on Lewandowski's family or hers.
'I did nothing wrong, ' Villa said. "I was shocked and embarrassed by his behavior", Villa tweeted about the alleged incident along with a photo.
She wore a dress bearing his campaign slogan, "Make America Great Again", to the Grammy Awards in February.
Villa told CNN that she initially thought the incident classified as sexual harassment, but was told by D.C. police that the alleged encounter she described constituted sexual assault.More news: How to Watch the Alamo Bowl: Stanford vs
Lewandowski did not respond to voicemail or text messages Wednesday seeking comment.
Lewandowski was Trump's campaign manager until he was sacked in June 2016, but he has retained ties to the president and recently published a book (written with another former aide, David Bossie) about Trump's campaign. She explained her decision to wear the dress in an Instagram post, writing, "You can either stand for what you believe in or fall for what you don't".
Lewandowski took to Fox Business to give his first interview to Charles Payne after facing these allegations and it was, well, bizarre.
In March 2016, the same man Villa filed the complaint against was charged with misdemeanor battery for an altercation involving a female reporter after a news conference in Florida. One of these that caught the eye of several people was how Trump once told him that his then press secretary Hope Hicks knew nothing about politics. The charges were later dropped and he was not prosecuted.More news: Saints' Alvin Kamara fined by National Football League for Christmas footwear