On December 17, 2018, the ballot-qualified American Party of South Carolina asked the State Election Commission to record that it had changed its name to the Alliance Party. The request was approved. South Carolina is one of the states that has always permitted parties to change their names.
The South Carolina Alliance Party is among those working to create an Alliance Party throughout the other states as well. It is a centrist party. Here is its national web page. Thanks to Peter Gemma for this news.