In 2016 presidential election the primaries accomplished which purpose?

In the 2016 presidential election, the primaries served to identify and narrow down the candidates for both major political parties, allowing voters to express their preferences and influence the selection process. They provided a platform for candidates to campaign, showcase their policies, and engage with voters, ultimately shaping the direction of each party's nomination. The primaries also highlighted divisions within the parties, particularly with the rise of outsider candidates, reflecting shifting voter sentiments and priorities.