Mexican President Andres Manuel Lopez Obrador.

Six months before Mexico’s presidential election, President Andres Manuel Lopez Obrador’s approval rating is sitting at 55 percent. But a string of corruption allegations against his family and party have put AMLO on the defensive in recent weeks, chipping away the teflon coating that has protected him during his five years in office.

Supporters of Guatemalan President-elect Arevalo.

Attempts to subvert democracy have become a staple of our time. But amid this deeply worrisome trend is an encouraging development: Those attempts appear to be failing, as those who support democracy get better at defending it. Consider Guatemala, where a soft coup was defeated by the country’s citizens and international pressure.