He was fourth on the Party for Freedom list in the 2023 Dutch general election, and therefore continued his term as a member of the House of Representatives.

However, he withdrew himself as a candidate after party leader Geert Wilders had been informed of findings by the General Intelligence and Security Service (AIVD).

In November 2017, Markuszower called for the general public to be able to appoint judges, a task for House of Representatives and council members.

In 2018, Markuszower took over the co-defense of a private member's bill from Geert Wilders concerning the detention of suspects in the interest of national security.

[10] Markuszower has voiced his support of a proposed Israeli annexation of the West Bank, and he has met with Yossi Dagan, chair of the Shomron Regional Council.

[6] Markuszower received a third House term in the 2023 general election, and he has served as the PVV's spokesperson for migration, asylum, and terrorism before changing to European affairs.

Additionally, he has been a member of the Centraal Joods Overleg, a spokesperson for Likud Netherlands, director of Jewish youth organizations such as Bnei Akiva and various student associations, and treasurer of the Dutch Israelite Denomination.