Final answer:
The subject of the sentence is 'Requiring employers'.
Step-by-step explanation:
The subject of the sentence 'Requiring employers to provide healthcare for workers will have access to medical care and should lower healthcare in the long term.' is Requiring employers. The subject is the person or thing that performs the action of the verb in a sentence. In this case, 'Requiring employers' is the noun phrase that acts as the subject, specifying who is being required to provide healthcare.
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