Hungarian President Katalin Novák announced her resignation on Saturday following mounting pressure over her pardon of a man convicted as an accomplice in a child sexual abuse case.

“I made a mistake,” said Novák in a video broadcast by state television.

Prime Minister Viktor Orbán, a right-wing populist, submitted a proposal to parliament on Thursday evening to change the Hungarian constitution so that in future, criminals whose crimes victimize children should never be pardoned.