By CECILIA KANGFEB. 5, 2017

Mr. Pai took a first swipe at net neutrality rules designed to ensure equal access to content on the internet. He stopped nine companies from providing discounted high-speed internet service to low-income individuals. He withdrew an effort to keep prison phone rates down, and he scrapped a proposal to break open the cable box market.

Mr. Pai, a former lawyer for Verizon, was elevated by Mr. Trump to the position of chairman after serving as a minority Republican member for the past three years.

The biggest target will be net neutrality, a rule created in 2015 that prevents internet service providers from blocking or discriminating against internet traffic. The rule, which was created alongside a decision to categorize broadband like a utility.