FEC records show that the largest fine ever levied by ICE was paid by a tree-trimming company that knowingly employed illegal immigrants.

After a six-year investigation by ICE, the higher level management of the company pleaded guilty to knowingly hiring and rehiring illegal immigrants.

The largest civil settlement agreement ever levied by ICE was reached with the family-owned company.

On Wednesday, the celebrity surgeon accepted two donations of $5,800 from the CEO of the tree-trimming company and his wife.

Oz donated nearly $23,000 to the political action committee of the company he is a shareholder in in 2020, according to a federal filing from the FEC.

Representatives for Oz's show didn't respond to Insider's request for comment.

The Pennsylvania senatorial candidate is running on a conservative platform. Oz said he would give up his Turkish citizenship if elected to the Senate.

Oz said in a statement that his dual citizenship has become a distraction in the campaign.

The TV doctor's controversial senatorial bid has yet to gain traction among conservative voters, who booed Oz at a rally in Pennsylvania last week. The television personality faces a high-profile primary later this month and former President Donald Trump endorsed her.