Extremely likely under any administration that this would still have been a voluntary recall. Voluntary recalls aren't really optional as they will quickly turn into legal proceedings and a court ordered (mandatory) recall. It substaintially reduces the company's legal risk and monetary risk to comply with a voluntary recall. There's a lot more nuance but just from the wikipedia for the way different types of FDA recall strategies work:

The manufacturers or distributors of the product carry out most recalls of products regulated by FDA voluntarily. In some instances, a company discovers that one of its products is defective and recalls it entirely on its own. In others, FDA informs a company of findings that one of its products is defective and suggests or requests a recall. Usually, the company will comply.

If the firm does not recall the product, then FDA can seek legal action under the FD&C Act. These include seizure of available product, and/or injunction of the firm, including a court request for recall of the product.