Marcos Jr. has held several political offices, including being elected to the House of Representatives in 1991 and the Senate in 2010, despite ongoing legal issues.

He has been dogged by a past conviction for failure to file his income tax papers and a government demand for a huge estate tax payment, which opponents unsuccessfully tried to use to disqualify his bid for the presidency. The petitions against his candidacy remain on appeal and could reach the Supreme Court.