In an ironic twist to the Philippine presidential election, former senator Ferdinand “Bongbong” Marcos Jnr could be disqualified from running under a law issued by his late dictator father.Ferdinand Marcos Snr had used his dictatorial powers in the 1970s to write a special clause into the National Internal Revenue Code banning any government official convicted of tax fraud from holding public office.The law remains in force today – though the clause has never been used – and could derail the…