Following the 1994 midterm election

The Republican Revolution, Revolution of '94 or Gingrich Revolution refers to the Republican Party (GOP) success in the 1994 U.S. midterm elections, which resulted in a net gain of 54 seats in the House of Representatives, and a pickup of eight seats in the Senate.

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.