A national watchdog group on Thursday asked the federal government to investigate whether first daughter and White House adviser Ivanka Trump violated the Hatch Act by using her Twitter account to promote her father’s campaign.

Citizens for Responsibility and Ethics in Washington accused Ivanka in a complaint to the Office of Special Counsel of using an account she also uses for official government business “for partisan political purposes on several occasions.”

One of the alleged infractions happened on Sunday when she tweeted out how she introduced her father four years earlier when he rode the Trump Tower escalator to announce his presidential run.

“Because of his courage, Americans are safer and more prosperous…and the best is yet to come! Happy Father’s Day!” she wrote in the posting, two days before Trump launched his re-election campaign in Florida.

The tweet included a photo of a banner with Trump’s campaign slogan, “Make America Great Again.”

CREW, which said she has used her account for other political postings since March 2017, said she refers to herself on her Twitter account as “Advisor to POTUS.”

The Hatch Act bars federal workers from using their influence to interfere in the results of a partisan election.

The watchdog group noted that Ivanka’s tweet on Sunday came just days after the Office of Special Counsel issued a report saying White House counselor Kellyanne Conway violated the Hatch Act and recommended she be fired.

The report said Conway broke the law by “disparaging Democratic presidential candidates while speaking in her official capacity during television interviews and social media.”

The president defended Conway by saying she was just exercising her right to free speech.

Former US Ambassador to the United Nations Nikki Haley and White House social media director Dan Scavino have also violated the Hatch Act.