Specifically, the complaint cites a newspaper report that people associated with Labor were traveling to the US to campaign for Harris.
That report, the complaint alleges, creates a “reasonable inference that the Labor Party did and Harris’s campaign accepted illegal contributions from foreign nationals.”
In the letter, the Washington Post reports that the two sides exchanged messages and that senior officials met privately.
The complaint also cites a social media post on LinkedIn in which a Labor official said “almost 100” current and former party members would head to battleground states in the US.
The message from Labor Party operations chief Sophia Patel added that 10 “places” were available and that “we will sort out your accommodation”.
It seems to have been removed after that.
The complaint draws comparisons to a 2016 international program in which the Australian Labor Party (ALP) sent delegates to help the Bernie Sanders campaign.
In this case, however, the ALP paid for the flights and daily stipends. The party and company were assessed civil penalties of $14,500.
The trips of labor activists were not organized or financed by the party, it became known from party officials.
Under FEC regulations, foreign nationals are allowed to volunteer as long as they are not compensated.
It is considered normal for party officials from the UK to be in contact with colleagues in the US.
This has also happened before between the UK Conservative Party and the US Republicans.
The BBC has contacted Harris-Walz for comment.
