IBOV 166,191.45 ▼ 0.82% IPC MEX 71,087.56 ▲ 0.38% MERVAL 2,848,945 — — USD/BRL5.49▼ 0.33% USD/MXN18.69▼ 0.32% USD/CLP980.00▲ 0.14% USD/COP3,238▲ 0.33% USD/PEN3.44▼ 0.14% USD/ARS1,545▼ 0.03% USD/UYU40.22▲ 3.25% USD/PYG6,358▲ 8.23% USD/BOB11.92▲ 1.74% USD/DOP60.57▲ 0.45% USD/CRC449.63▲ 2.20% USD/GTQ7.64▲ 3.24% USD/HNL26.87▲ 3.22% USD/NIO36.62▲ 2.77% USD/VES892.65▼ 0.26% USD/PAB1.00— 0.00% USD/BZD2.00— 0.00% USD/JMD157.79▲ 2.77% USD/TTD6.64▲ 1.17% EUR/BRL6.14▲ 0.21% BRENT 98.22 ▼ 0.07% WTI 90.67 ▲ 0.17% IRON ORE 161.91 — — COPPER 6.25 ▲ 0.03% GOLD 4,074 ▼ 0.96% SILVER 51.92 ▼ 0.61% SOY 1,191 ▲ 0.83% CORN 441.00 ▲ 0.23% WHEAT 591.75 ▼ 1.25% COFFEE 269.85 ▼ 2.63% SUGAR 18.42 ▼ 0.75% ORANGE JUICE 130.55 ▼ 0.72% COTTON 78.70 ▼ 0.01% COCOA 5,214 ▲ 0.64% BEEF 214.48 ▼ 1.62% CATTLE 325.08 ▼ 2.09% LITHIUM 60.18 ▼ 2.75% PETR4 45.95 ▼ 2.48% VALE3 62.67 ▲ 0.51% ITUB4 39.97 ▲ 0.65% BBDC4 13.77 ▼ 2.06% ABEV3 15.48 ▲ 1.51% BBAS3 16.49 — 0.00% B3SA3 14.36 ▲ 0.42% WEGE3 48.30 ▼ 3.50% PRIO3 61.54 ▼ 0.97% SUZB3 52.29 ▼ 0.11% RENT3 29.07 ▼ 1.32% AZZA3 14.06 ▲ 0.64% CSAN3 2.50 ▲ 4.60% RAIZ4 27.30 ▼ 0.98% PCAR3 2.39 ▲ 3.91% GMAT3 3.71 ▲ 5.10% PSSA3 43.71 ▼ 2.63% CVCB3 0.82 ▲ 1.23% POSI3 3.11 ▼ 1.89% SLCE3 16.35 ▼ 1.51% NATU3 5.35 ▼ 1.29% BRKM5 3.03 ▼ 0.66% RANI3 8.46 ▼ 1.97% CSNA3 4.05 ▼ 0.74% IBOV 166,191.45 ▼ 0.82% IPC MEX 71,087.56 ▲ 0.38% MERVAL 2,848,945 — — USD/BRL 5.49 ▼ 0.33% USD/MXN 18.70 ▼ 0.28% USD/CLP 981.55 ▲ 0.30% USD/COP 3,238 ▲ 0.33% USD/PEN 3.44 ▼ 0.14% USD/ARS 1,545 ▼ 0.19% USD/UYU 40.22 ▲ 3.25% USD/PYG 6,358 ▲ 8.23% USD/BOB 11.92 ▲ 1.34% USD/DOP 60.57 ▲ 0.45% USD/CRC 449.63 ▲ 2.20% USD/GTQ 7.64 ▲ 3.24% USD/HNL 26.87 ▲ 3.22% USD/NIO 36.62 ▲ 2.77% USD/VES 892.65 ▼ 0.26% USD/PAB 1.00 — 0.00% USD/BZD 2.00 — 0.00% USD/JMD 157.79 ▲ 2.77% USD/TTD 6.64 ▲ 1.17% EUR/BRL 6.14 ▲ 0.18% BRENT 98.22 ▼ 0.07% WTI 90.67 ▲ 0.17% IRON ORE 161.91 — — COPPER 6.25 ▲ 0.03% GOLD 4,074 ▼ 0.96% SILVER 51.92 ▼ 0.61% SOY 1,191 ▲ 0.83% CORN 441.00 ▲ 0.23% WHEAT 591.75 ▼ 1.25% COFFEE 269.85 ▼ 2.63% SUGAR 18.42 ▼ 0.75% ORANGE JUICE 130.55 ▼ 0.72% COTTON 78.70 ▼ 0.01% COCOA 5,214 ▲ 0.64% BEEF 214.48 ▼ 1.62% CATTLE 325.08 ▼ 2.09% LITHIUM 60.18 ▼ 2.75% PETR4 45.95 ▼ 2.48% VALE3 62.67 ▲ 0.51% ITUB4 39.97 ▲ 0.65% BBDC4 13.77 ▼ 2.06% ABEV3 15.48 ▲ 1.51% BBAS3 16.49 — 0.00% B3SA3 14.36 ▲ 0.42% WEGE3 48.30 ▼ 3.50% PRIO3 61.54 ▼ 0.97% SUZB3 52.29 ▼ 0.11% RENT3 29.07 ▼ 1.32% AZZA3 14.06 ▲ 0.64% CSAN3 2.50 ▲ 4.60% RAIZ4 27.30 ▼ 0.98% PCAR3 2.39 ▲ 3.91% GMAT3 3.71 ▲ 5.10% PSSA3 43.71 ▼ 2.63% CVCB3 0.82 ▲ 1.23% POSI3 3.11 ▼ 1.89% SLCE3 16.35 ▼ 1.51% NATU3 5.35 ▼ 1.29% BRKM5 3.03 ▼ 0.66% RANI3 8.46 ▼ 1.97% CSNA3 4.05 ▼ 0.74%
since 2009
Friday, November 6, 2026

OAS Accusations of Fraud in Bolivian Elections Unfounded, say US Researchers

By · March 2, 2020 · 3 min read

RIO DE JANEIRO, BRAZIL – An investigation by two experts from the Massachusetts Institute of Technology (MIT) has caused a stir, as they claim there were no grounds for the Organization of American States (OAS) to state that fraud was involved in the presidential elections in Bolivia last October.

The Organization of American States (OAS).
The Organization of American States (OAS).
RT
Ask Rio Times
17 years of Latin America reporting, on demand.
Open the full Ask Rio Times →

According to an assessment by the OAS, the right-wing opposition in Bolivia mobilized against the re-election of Evo Morales, encouraging the military to force the legitimate president to resign. Morales and members of his government were forced into exile by threats. Since then, an interim government has been in power, led by de facto President Jeanine Áñez.

An article in the US daily newspaper The Washington Post now reported on an investigation by MIT’s Election Data and Science Lab, according to which some 1,000 runs of methodologically sophisticated statistical simulations made it “highly probable” that Evo Morales exceeded the ten percent difference in votes against those of the second-placed right-wing candidate. According to Bolivian electoral law, this difference is required to rule out a second round of voting.

“There seems to have been no statistically measurable difference in the margin before and after the suspension of the preliminary quick count,” confirm the researchers from the world’s leading institute, John Curiel and Jack R. Williams, in their report.

In the October 20th, 2019 elections, a first quick count was interrupted for several hours – according to the country’s electoral authority, it was due to technical issues. Before this interruption, President Morales’ lead over his strongest challenger, Carlos Mesa, was less than ten percent, which would have meant a second round vote. After the count was resumed, Morales had a lead of over ten percent.

The LatAm Brief

One email, every weekday morning. What moved in Latin American markets, politics and expat life.

Yesterday’s subject line: “Paraguay's president tried to quit. Congress said no”

Free. We send a confirmation link first — nothing arrives until you click it. Unsubscribe with one click in any edition. If you stop opening us for 30 days we stop sending by ourselves, as we assume the interest is no longer there. See our privacy policy. We never share your email.

The scientists now confirm this result. “Morales had a lead of at least 10.49 percent over his challenger, Carlos Mesa.” The increase in votes for Morales after the break could be “fully explained by the votes already cast”.

Experts in the country had already pointed out that the higher increase in Morales’ votes at the end of the count merely reflected the politician’s stronger base in rural areas, the results of which came in later. The MIT study harshly criticizes the OAS statements, claiming their conclusions were “deeply flawed”.

Bolivia's former President Evo Morales.
Bolivia’s former President Evo Morales.

After leaving former inquiries from scientists unanswered, the OAS reacted fiercely when the study was released. In a statement, the OAS relied on “evidence of deliberate acts” to rig the elections, “serious irregularities such as a lack of protection of the election documents”, a “significant number of errors” and “blatant foul play”.

The highly respected scientists describe the explanation as “individuals who consider themselves scientists and specialists in electoral processes”. Moreover, the European Union, which also had election observers on the ground, shared the OAS assessment of “electoral fraud”.

The ousted president of Bolivia has already commented on the Washington Post article. The investigation is “further proof of the monumental heist committed by [Carlos] Mesa, [Jeanine] Áñez, [Luis] Camacho and [Luis] Almagro against all Bolivians,” Morales wrote on Twitter.

Meanwhile, the Mexican government has called on the OAS to explain the “shortcomings” in its review of the Bolivian elections. “Our representative to the OAS will formally request that a third party carry out a comparative examination of the two studies and clarify the discrepancies between them,” said Roberto Velasco, a spokesman for the Mexican Foreign Ministry.

“In view of the study’s findings, which call into question the OAS’ analysis and the statements of its Secretary General, Luis Almagro, we believe that the organization should clarify and explain the shortcomings in its report that were made public by these two researchers,” Velasco affirmed.

This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief

The Rio Times · Power Map
See who really holds power in Latin America
Click to open the Power Map →

Brazil runoff date: Sunday, October 25, poll closing times and when results start · Brazil runoff polls: Flávio 51%, Lula 49% · Kalshi and Polymarket odds

Rotate for Best Experience

This report is optimized for landscape viewing. Rotate your phone for the full experience.