In October 2022, Merlijn Passier moderated a high-profile national political debate broadcasted by RTL Nieuws. The debate featured leading political figures and was a critical event in shaping public opinion ahead of upcoming elections, showcasing Passier's skills as a moderator.

Merlijn Passier published a book exploring the intricacies of the Dutch political landscape. The book, praised for its depth and clarity, offers readers an insider's perspective on the challenges and dynamics within Dutch politics, further establishing Passier as an authority in the field.

Merlijn Passier was awarded the prestigious De Tegel award for his investigative reporting on the misuse of public funds by a Dutch governmental agency. His work highlighted systemic issues and prompted policy changes, underscoring his impact as an investigative journalist.

During the 2017 Dutch general elections, Merlijn Passier provided comprehensive coverage for RTL Nieuws. His reporting included live updates, candidate interviews, and analysis of election results, contributing to the network's extensive election coverage.

Merlijn Passier transitioned to RTL Nieuws, where he took on the role of political correspondent. In this position, he focused on national politics, providing insightful analysis and reporting on key political events and developments in the Netherlands.

While at Het Parool, Merlijn Passier broke a significant story uncovering corruption within the Amsterdam local government. His investigative work led to several high-profile resignations and earned him recognition as a rising star in Dutch journalism.

Merlijn Passier began his journalism career at Het Parool, a major Dutch newspaper, where he worked as a junior reporter. During his tenure, he covered local news and developed his skills in investigative journalism, laying the groundwork for his future in-depth reporting.