A congressional commission in Peru has said President Alejandro Toledo is guilty of electoral fraud, without saying how he should be punished.
Mr Toledo won 2001 polls by promising to curb corruption
The commission is split between his opponents and supporters - with the latter refusing to sign the report.
The panel's recommendations now go to Congress - where the government has a narrow majority.
President Toledo denies helping to fake signatures to register his political party for elections in 2000.
Prosecutors in Peru have alleged that Mr Toledo's Peru Possible party forged almost 80% of the 520,000 signatures it used to register for the poll, which it subsequently lost.
The commission accused both the president and his sister Margarita of being involved in the scandal.
However the conclusions are being questioned by two of the five panel members, who refused to approve the document.
The findings, which took seven months to compile, now have to be debated by a plenary session of Peru's Congress.
The BBC's Hannah Hennessy in Lima says the nature of any possible sanction is not clear, but reports suggest the commission had recommended vacating the presidency.
This is the worst scandal to hit Mr Toledo, who has just over a year left in office and the support of less than 10% of the population, according to polls.
President Toledo says he is being targeted by a "conspiracy against democracy" designed to bring down his government.
He won a landslide election victory in 2001 after campaigning on an anti-corruption ticket.