A more thorough explanation:

A party-column ballot is a type of ballot used in elections where the candidates' names are listed in separate columns by political party, regardless of the offices sought by the candidates. This means that all the candidates from a particular political party are listed together in a column, making it easier for voters to vote for all the candidates from a particular party at once.

For example, in a party-column ballot, all the Democratic Party candidates would be listed in one column, and all the Republican Party candidates would be listed in another column. This type of ballot is used in many states in the United States, including Indiana, Michigan, and Pennsylvania.

The party-column ballot is designed to make it easier for voters to vote for all the candidates from a particular political party at once. This can be helpful for voters who want to support a particular party or who are not familiar with all the candidates running for office.