Original sentence: A Declaration of Commitment was prepared over the preceding couple of days, which committed federal opposition parties and the AFN to address the critical issues that affected the relationship between First Nations people and the Canadian Government, based on Nation-to-Nation treaties going back to the 18th century
Edited sentence: A Declaration of Commitment had been cobbled together over the preceding couple of days, which committed federal opposition parties and the AFN to address the critical issues that affected the relationship between First Nations people and the Canadian Government, based on Nation-to-Nation treaties going back to the 18th century