Brazilian President Jair Bolsonaro is counting on massive fuel tax cuts to improve his re-election chances, as the population prepares to go to the polls in two months.

In July, the Brazilian congress backed a government-sponsored bill setting a cap of 17% on a state sales tax known as ICMS when the levy is applied to fuels, energy and telecommunications.

The government pledged to financially compensate states that will be affected by the ICMS reduction, prompting several states to seek to pin these pledges down through proceedings in the country’s supreme court.