Alfonso Romo, top economic adviser and chief of staff nominee of Mexico's leftist presidential election front-runner, Andres Manuel Lopez Obrador, speaks to journalists during a news conference in Mexico City, Mexico, June 25, 2018.
Alfonso Romo, top economic adviser and chief of staff nominee of Mexico's leftist presidential election front-runner, Andres Manuel Lopez Obrador, speaks to journalists during a news conference in Mexico City, Mexico, June 25, 2018.

Leading presidential candidate Andres Manuel Lopez Obrador would seek to increase investor confidence in Mexico to strengthen the peso and could hold auctions of oil rights, a top adviser said on Monday, striking a moderate tone days before the election.

Leftist Lopez Obrador is leading ahead of Sunday's vote and Alfonso Romo, his top business adviser, told reporters a Lopez Obrador government will do everything it can - short of intervention - to help the peso.

Romo, Lopez Obrador's nominee for chief of staff, said his government would seek to strengthen the rule of law and create business conditions that would give investors confidence in order to support the Mexican currency.

He echoed other advisers, saying Lopez Obrador would respect the independence of the central bank.

Mexico's peso sank to a 1-1/2 year low this month, hit by a broad dollar rally, a deadlock in talks to rework the NAFTA trade deal and nervousness ahead of the election.

Lopez Obrador, 64, is an anti-system third-time presidential candidate who promises to clean up corruption. Some of his proposals, such as suspending oil auctions, have unnerved investors.

Leftist front-runner Andres Manuel Lopez Obrador o
Leftist front-runner Andres Manuel Lopez Obrador of the National Regeneration Movement (MORENA) is greeted by supporters after a campaign rally in Tlapa de Comonfort, in Guerrero state, Mexico, June 7, 2018.

The former Mexico City mayor holds a commanding double-digit lead in all major opinion polls, although one survey on Monday showed his lead narrowing slightly, to 12 points.

Romo sought to calm any jitters on Monday, saying there could be more auctions of oil drilling rights as long as a review of contracts that have already been awarded to private companies showed no problems.

"We will revise them and everything good will remain," he said, noting Lopez Obrador had taken the same message to investors in New York.

Romo said such a review should be finished quickly, ideally by October, during the transition period before Mexico's next president takes office in December.

Romo said he felt "at ease" with what he had reviewed so far regarding the landmark energy opening under current President Enrique Pena Nieto.

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