What was the job of the committees of correspondence?  

communication between the colonies during the War of Independence.

Explanation: The committees of correspondence were bodies organized from 1773 to help the colonies to have written communication between themselves. The main objective was to be aware of possible British conspiracy.

in 1891, the people's party (also known as the populist party, or the populists) was formed as a political party representing the interests of the nation's agricultural sector. the farmer's alliance was a major part of the populist coalition.