Police patrol on the sidelines of a march by supporters of former President Evo Morales, arriving from El Alto and entering La Paz, Bolivia, Tuesday, Nov. 12, 2019.
But the upheaval that has recently rocked the region, threatening Trump allies and anti-imperialist governments alike, defies easy categorization.
"The left had a very long stretch but it's unlikely to be repeated," said Michael Shifter, president of the Inter-American Dialogue.
Prior to Morales' resignation, the left had been hoping for a comeback following the 2017 election last year of far-right populist Jair Bolsonaro in Brazil.
"The left was attractive for a very long time and justifiably so because it spoke for the people when nobody else did," said Arana.