The Department of Justice agrees that the people of Puerto Rico should be allowed to choose whether to become a nation independent of the United States, become a state within the United States, or retain the current status of a territory. Insofar as H.R. 2070 would facilitate a choice among those three options, which we believe are the three constitutional options available to Puerto Rico, the Department supports the bill. In the section-by-section analysis, the Department explains the basis for its view more fully and advises of its comments on certain sections of the bill. 
https://issuu.com/coleccionpuertorriquena/docs/doj_analysis_of_hr_2070