Alderman In 2010, De Jonge was appointed as an
alderman in the Rotterdam
municipal executive, tasked with the Education, Youth and Family portfolio. As such, he argued in 2013 on national television for the closing of the Islamic school association Ibn Ghaldoun after several problems came to light. Following the
2014 municipal election, De Jonge was again appointed an alderman, with the Healthcare portfolio. The same year, he was announced as the "Politician of the Year" in Rotterdam. In October 2016, he announced a programme to persuade parents who are considered vulnerable to consider voluntary birth control. As he left the Rotterdam politics in October 2017, he was awarded the municipal
Wolfert van Borselenpenning.
Minister In October 2017, De Jonge was appointed
Deputy Prime Minister and
Minister of Health, Welfare and Sport in the
Third Rutte cabinet. During the administration of the oath and installation of the new Ministers, De Jonge received media attention because of his unusual choice of shoes, receiving both criticism and praise. In this capacity, he initiated the development of a
COVID-19 app. He won the vote against
Pieter Omtzigt. As Minister for Housing and Spatial Planning, De Jonge introduced the
Good Landlordship Act to regulate rented housing, and it passed both houses of parliament in March 2023. He proposed an
amendment the following year to extend
rent control beyond
public housing, and he filed a bill that would mandate a certain percentage of new housing to be affordable. It went into effect in July 2024. The fourth Rutte cabinet had been a
caretaker government since July 2023. However, De Jonge continued introducing new legislative proposals as no housing-related subjects had been exempted from consideration by the House of Representatives. His term as minister ended on 2 July 2024, when the
Schoof cabinet was sworn in, and he became
King's Commissioner of Zeeland in an acting capacity on 16 September 2024, succeeding
Han Polman. He was appointed to the office and his acting period ended on 1 July 2025. ==Political positions==