His government issued a statement claiming that an opposition plot to oust the president was being led by Camacho and former President Carlos Mesa, who finished second in the October 20 election.
"If you have an iota of patriotism, you should step aside", Mesa said in a news conference. The former leader of a coca growers union, he paved roads, sent Bolivia's first satellite into space and curbed inflation. The country's top court, considered by critics as friendly to the president, ruled that limits would violate Morales' political rights as a citizen, AP pointed out.
On Sunday, worldwide monitors called for the election result to be annulled, saying they found "clear manipulations" of the 20 October election results.
"In the four categories that were reviewed (technology, chain of custody, integrity of the ballots and statistical projections) we have found irregularities that run from very serious to suspicious", the OAS said in its 13-page report.
Tensions first flared on the night of the presidential election after the results count was inexplicably paused for 24 hours.
"We want President Evo Morales to leave", said Camacho, who plans to lead a march to the government palace on Monday with a symbolic resignation letter for the president to sign.
US Secretary of State Mike Pompeo commended the OAS audit and said the US supported the new election and the installation of a new electoral council.
Three people have died and more than 250 have been injured in often violent protests since Morales claimed to have won a fourth consecutive term in last month's poll.
Backers of Bolivia's president blocked the arrival of an opposition leader to the capital of La Paz on Tuesday and the government flew him back to his home city amid protests over the apparent reelection of President Evo Morales.
Carlos Mesa, the centrist candidate who came in second in the disputed elections, said Morales should resign "if he has a speck of patriotism left". "We are asking that both sides hear us", Sergio Rengel, a leader in the tourism sector, told The Associated Press.
The audit isn't the only factor likely forcing Morales' hand: Police across the country have now begun to declare themselves in mutiny and join the throngs of protestors.
Mesa rejected the suggestion to hold talks.
Morales, Bolivia's first president of indigenous descent, did not say whether he would run again.
Morales denounced the seizure.
"I cried with joy", he said on Twitter.
Mr Morales' party Movement for Socialism called on its supporters to come to La Paz and "defend" the results of the controversial election.
Neil Jones confirms he will be returning to Strictly tonight
The bottom of the leaderboard was Chris Ramsey and Karen Hauer with 26 points and Mike Bushell and Katya Jones with 25 points. They were in the dance off against Ru Paul's Drag Race star Michelle Visage, 51, and her partner Giovanni Pernice, 29.
Number of billionaires grew by almost 40% over past 5 years
The net worth of the world's billionaires dropped 4.3 per cent to US$8.5 trillion in 2018, according to a UBS and PwC report. About half of that decline is due to a depreciation in the Chinese yuan against the USA dollar, according to the report .