Temer faces second set of charges over obstruction of justice and leading a criminal group; the first for taking bribes for political favours.
Brazil's chief prosecutor on Thursday charged President Michel Temer with obstruction of justice and leading a criminal group in the biggest climax yet to the country's ever-growing corruption scandal.
The leader of Latin America's biggest and richest country was accused along with six of his heavyweight political allies of taking almost $190 million in kickbacks.
In a statement, the office of Prosecutor General Rodrigo Janot charged that Temer "acted as leader of a criminal organisation" comprising senior officials from his centre-right PMDB party. They allegedly took the kickbacks in exchange for contracts at public companies like oil giant Petrobras.
The alleged ring operated from May 2016, when Temer first took over from leftist president Dilma Rousseff following her impeachment, Janot's office said.
The prosecutor's office said Temer also obstructed justice by attempting to pay bribes to prevent businessman Lucio Funaro – an alleged middleman in the bribery – from testifying against him under a plea deal with prosecutors.
Temer fired back soon after, calling Janot's accusations "absurd" and accusing the prosecutor of "continuing his irresponsible conduct in order to mask his own mistakes."
Likely to finish term in office
The criminal charges must be first accepted by the Supreme Court before being sent for debate in the lower house.
If the house accepts the charges and a trial starts, Temer would be suspended for 180 days, pending the result.
However, the president is widely thought to have enough support in Congress to avoid being forced to trial, allowing him to finish his term at the end of 2018.
Janot had already charged Temer with bribe-taking in June but the lower house of the legislature voted overwhelmingly to throw out the charge, preventing him from being tried at the Supreme Court.
"The second round of corruption charges against President Michel Temer is likely to be handily rejected," Eurasia Group said in an analysis note.
The charges are part of an onslaught by prosecutors against Brazil's corruption-riddled elite in which dozens of politicians and executives have been convicted or are being charged in embezzlement and bribery schemes.
Meat baron key figure
The three-year-old corruption probe known as "Car Wash" has discovered that big companies systematically paid bribes to politicians and party campaign coffers.
Former leftist president Luiz Inacio Lula da Silva, a fierce opponent of Temer, has already been convicted in one corruption trial and faces five more.
Temer's right-wing allies are faring no better. About a third of his cabinet is being probed.
There has been even greater urgency in recent days as the hard-hitting Janot winds down his term as chief prosecutor, with his last day at work on Sunday.
Just on Thursday, police raided the home of wealthy Agriculture Minister Blairo Maggi, who is accused of obstructing justice, and a day earlier they arrested Wesley Batista, CEO of the world's biggest meat packer, JBS.
In a last-ditch bid to stop Janot, Temer's lawyers appealed to the Supreme Court to have him taken off the case for alleged bias, but on Wednesday the court ruled 9-0 to keep the prosecutor.
Temer's inner circle
The latest charges broaden their scope to Temer's inner party circle and will tarnish his reputation even further.
Two of those charged along with Temer were his chief of staff Eliseu Padilha and Moreira Franco, a close confidant who holds a ministerial-level administrative post in the presidency.
Another was a former minister, Geddel Vieira Lima, who was imprisoned last week after police discovered the equivalent of $16 million in cash stuffed into boxes and suitcases in an apartment he used.
One of the keys to the prosecutors' obstruction of justice case has been plea deal evidence from JBS executive Joesely Batista, brother of Wesley Batista.
They agreed to cooperate with investigators after admitting that their company had bribed no less than 1,900 politicians.
It was Joesely Batista who met with Temer at his Brasilia residence in March and secretly recorded the president allegedly discussing payment of hush money to prevent former allies from testifying against him.
Temer denies that the recording shows anything incriminating.
However, the plea deal testimony from both Batista brothers is being challenged by Temer's lawyers at the Supreme Court in the wake of revelations that Joesley Batista withheld information from prosecutors.
That led to the leniency agreement signed with the brothers being stripped and Joesley Batista being arrested on Sunday.
Wesley was arrested on Wednesday on suspicion of insider trading to profit from the market upheaval created by the scandal.