Brazil has spent the past three weeks immersed in wall-to-wall coverage of a Senate inquiry into why Covid-19 exploded so horribly in the country -- a parade of damning, sometimes comical testimony likely to damage President Jair Bolsonaro.

The letters "CPI" -- for parliamentary investigative commission -- have been splashed across the front pages of Brazil's newspapers almost daily, while news channels carry live broadcasts of the lengthy hours of hearings.

he Nossa Senhora Aparecida cemetery in Manaus, Brazil, the country with the world's second highest Covid-19 death rate
he Nossa Senhora Aparecida cemetery in Manaus, Brazil, the country with the world's second highest Covid-19 death rate AFP / Michael DANTAS

Far from the staid affair its name might suggest, the probe has been flush with insults, arguments, and episodes of general rowdiness, including a senatorial shouting match when one former official was nearly arrested on the spot for perjury.

Brazilians have watched, often dumbfounded, as a succession of current and former officials in the far-right president's administration have struggled to answer senators' questions on how the pandemic has come to claim nearly 450,000 lives in Brazil, second only to the United States.

The discussions revolve mostly around the president and his government's list of unorthodox decisions on Covid-19, which include opposing stay-at-home measures and masks, touting ineffective medications, refusing offers of vaccines, and failing to anticipate oxygen shortages that left patients to suffocate.

Far from the staid affair, the Brazilian senate probe into the response to the Covid-19 pandemic has been flush with insults, arguments, and episodes of general rowdiness
Far from the staid affair, the Brazilian senate probe into the response to the Covid-19 pandemic has been flush with insults, arguments, and episodes of general rowdiness AGENCIA SENADO / Edilson RODRIGUES

Without all that, "how many lives could have been saved?" the commission's deputy chair, opposition Senator Randolfe Rodrigues, has asked repeatedly.

"The government is on the ropes," said Geraldo Monteiro, a political scientist at Rio de Janeiro State University (UERJ).

"Every day, new revelations emerge implicating the government. That's putting the squeeze on the administration, and especially Bolsonaro, whose direct responsibility is increasingly clear," he told AFP.

Brazilian President Jair Bolsonaro's approval rating is at a record low as he prepares to run for re-election in 2022
Brazilian President Jair Bolsonaro's approval rating is at a record low as he prepares to run for re-election in 2022 AFP / EVARISTO SA

"The stream of witnesses testifying on the insanity of the government's behavior in the crisis has made its irresponsibility clear," leading newspaper Estado de Sao Paulo wrote in an editorial.

The commission has also spawned memes on social media, such as a picture of former health minister Eduardo Pazuello miswearing his face mask in a bunched-up band above his mouth, instantly dubbed the "mask floss" look on Twitter
The commission has also spawned memes on social media, such as a picture of former health minister Eduardo Pazuello miswearing his face mask in a bunched-up band above his mouth, instantly dubbed the "mask floss" look on Twitter AFP / Sergio Lima

The commission, which has a 90-day renewable mandate, will submit a final report to prosecutors that could form the basis of a criminal investigation.

That task lies in the hands of fiery veteran Senator Renan Calheiros, who has made it clear he will not pull any punches in his report card on the administration's performance.

The prospect has the president's inner circle looking nervous. During one tense hearing, Bolsonaro's son Flavio, also a senator, called Calheiros a "bum."

The senate commission can arrest witnesses for perjury - which nearly happened on May 12, 2021 when a powerful senator called for the arrest of former presidential communications chief Fabio Wajngarten, a request that was eventually overruled
The senate commission can arrest witnesses for perjury - which nearly happened on May 12, 2021 when a powerful senator called for the arrest of former presidential communications chief Fabio Wajngarten, a request that was eventually overruled AFP / Sergio Lima

"He can put on his little show, but he's not going to take me down. Only God can do that," the president, who is not scheduled to testify, said the next day.

The commission does not have the power to launch impeachment proceedings, but the final report could help push Congress in that direction -- as a similar probe did in the 1990s, leading to the resignation of president Fernando Collor de Mello.

Monteiro said such an outcome was "unlikely" in Bolsonaro's case, given his pragmatic alliance with lower-house Speaker Arthur Lira, the gatekeeper to open impeachment proceedings.

"It would take a truly explosive revelation," he said.

"We haven't really had any bombs so far -- it's more confirming things we already knew."

But the commission stands to embarrass Bolsonaro just as he gears up to run for re-election next year.

His popularity is at an all-time low, and recent polls show him losing to leftist ex-president Luiz Inacio Lula da Silva if the latter runs.

Opposition lawmakers are not letting the opportunity to attack the administration slip by.

"You owe the country an apology. You're a compass who steered us straight into an iceberg," Senator Katia Abreu told ultra-conservative ex-foreign minister Ernesto Araujo in one hearing.

The tension is all the greater given that the commission has the power to have witnesses arrested for perjury.

That nearly happened on May 12, when Calheiros called for the immediate arrest of former presidential communications chief Fabio Wajngarten.

The drama lasted long enough for Wajngarten to turn visibly pale, before commission chair Omar Aziz overruled the rapporteur.

The commission has also spawned memes on social media, such as a picture Wednesday of former health minister Eduardo Pazuello miswearing his face mask in a bunched-up band above his mouth, instantly dubbed the "mask floss" look on Twitter -- and condemned by critics as a symbol of the government's Covid-19 response.