This chapter analyzes roll call voting patterns inside Chile’s two constitution‐writing bodies: the Constitutional Convention (2021–2022) and the Constitutional Council (2023). Despite deep divisions between left and right-wing groups in the respective constitutional bodies and a lack of overall consensus on the content of the constitutional proposals, the analysis finds a substantial share of votes receiving cross‐bloc support, particularly in the Constitutional Council. Further analysis reveals that such agreements reflected mostly opposition to some initiatives rather than consensus on substantive constitutional issues. Ideal point estimations show significant fragmentation within the Constitutional Convention and a sharp ideological divide in the Constitutional Council, including notable divisions within the right‐wing bloc between more moderate and more extreme factions. The findings suggest that, although both processes exhibited some degree of cooperation, ideological divisions and structural constraints hindered the emergence of sustained consensus, likely contributing to their failure.