By Katy Watson
BBC South America correspondent, São Paulo
Brazilians person woken up contiguous inactive processing what connected world went connected successful their country's superior connected Sunday.
The scenes of chaos shouldn't person travel arsenic a surprise, though.
Throughout Jair Bolsonaro's term, helium has repeatedly questioned the efficacy of Brazil's institutions - accusing the Supreme Federal Court of being politically against him, and the voting strategy of being prone to fraud, contempt nary grounds to enactment those claims.
In short, helium whitethorn not person masterminded the invasion, but helium cannot beryllium separated from it. His supporters took connected his communicative wholeheartedly.
Since helium mislaid the elections successful October, Mr Bolsonaro has gone precise quiet. He has not publically conceded decision - helium flew disconnected to Florida to debar having to manus implicit the statesmanlike sash to Lula - and he's allowed his astir ardent supporters to stay aggravated implicit a antiauthoritarian predetermination that helium legitimately lost.
Last week, his erstwhile vice president said the soundlessness of leaders sowed chaos successful nine - and that is what Jair Bolsonaro is blameworthy of, astatine the precise least.
Tension has decidedly been gathering these past fewer months. Camps were acceptable up crossed the state successful beforehand of service headquarters, with protestors loyal to Mr Bolsonaro calling for subject intervention.
And past successful December, supporters acceptable occurrence to Federal Police office successful Brasilia. Another protagonist was arrested for allegedly trying to acceptable disconnected a weaponry earlier Lula's inauguration connected 1 January.
Brazilians feared what happened connected Sunday was lone a substance of time. Perhaps much worrying is the relation the authorities played successful allowing this to happen.
It's nary concealed that galore information forces are much connected the broadside of Mr Bolsonaro than Lula. Mr Bolsonaro's communicative passim his word astir information successful Brazil - and keeping radical harmless - made definite helium had allies wrong the constabulary and the equipped forces.
Brasilia's governor, Ibaneis Rocha - a long-time state of Jair Bolsonaro - has been suspended for 90 days. The Security Secretary of Brasilia, Anderson Torres, was besides dismissed implicit yesterday's events.
To what point, then, were authorities moving with protestors to let specified an penetration of top-security authorities buildings?
And unit is gathering extracurricular Brazil excessively - with Mr Bolsonaro inactive successful Florida, Joe Biden has already been asked to extradite the erstwhile Brazilian president to look questions backmost home.
While Lula's medication tries to get to the bottommost of wherever it each went wrong, the situation remains - helium has formidable absorption successful these protestors, truthful could this hap again?
While overmuch has been said astir the protestors' choler implicit Mr Bolsonaro's nonaccomplishment successful October, this is much astir the antheral helium mislaid to - Lula.
For them, the existent president - who was jailed successful 2017 for corruption, and spent 18 months successful situation earlier the convictions were annulled - is simply a corrupt person who belongs successful prison, not the statesmanlike palace.
They falsely impeach him of being a communist, wanting to enforce a authorities similar Venezuela oregon Cuba. They won't beryllium convinced by thing other - and they won't springiness up their combat for "democracy" arsenic they telephone it.
But there's a monolithic flaw successful their statement successful wanting state and democracy.
They are calling for a precise undemocratic subject involution to "save" Brazil - an involution that contempt their champion efforts, doesn't look forthcoming.