Mexico witnessed radical change in its elections at the beginning of this month, and it appears the prospects for profound transformation are only likely to grow. After riding a populist wave of support to victory on July 1, Andres Manuel Lopez Obrador released a list of priorities for Mexico's Congress — which his coalition will also dominate — when newly elected lawmakers assume their seats on Dec. 1. Amid the raft of anti-corruption proposals is one item that could prove crucial: the elimination of restrictions on referendums, together with a related constitutional amendment to make such votes legally binding. Though the proposal is brief and buried within the incoming president's lengthy to-do list, the manner in which Lopez Obrador goes about expanding and amending Mexicans' right to vote in referendums could have wide-ranging and unintended consequences — not least for politicians, the private sector and foreign investors.