Mexico's Electoral Court is meeting to rule on an appeal against the result of the July 1 election that named Enrique Pena Nieto president.
Pena Nieto, who is considered center-right, was declared the winner after a recount of nearly half of the votes, according to BBC News.
Leftist runner-up Andres Manuel Lopez Obrador claimed the Institutional Revolutionary Party (PRI) bought five million votes and violated campaign spending limits to make sure Pena Nieto won the election, reported Agence France-Presse. Pena Nieto has denied all charges and Mexican media are said to have predicted the court will rule in his favor, allowing him to begin his six-year term on December 1.
The PRI has often been accused of corruption and vote-rigging during its long rule, noted Reuters. Lopez Obrador has said Pena Nieto is a tool of entrenched interests in Mexico.
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The tribunal said late Wednesday that it was ready to rule on the validity of the election after hearing complaints from the Progressive Movement, a left-wing coalition supporting Lopez Obrador, according to AFP. The former mayor of Mexico City said the PRI returned to its corrupt ways in order to come back into power after a 12-year absence.