On 31 December 2018, Kaliňák resigned his seat in the National Council, effectively retiring from politics until the 2023 parliamentary election.

[2] Kaliňák's brother Milan is a member of the Taktici rock band, with whom Robert also played occasionally in the past.

[3] Whilst studying, Kaliňák successfully entered the world of entrepreneurship in 1990 by opening a student restaurant, a publishing house and printing office of scholarly literature.

[4] Whilst Kaliňák was holding the post of Minister of Interior, he faced several criticisms from the side of opposition regarding his purchase of shares from shareholder, who was later investigated for tax fraud.

Kaliňák resigned as an interior minister as well as the PM deputy on 22 March 2018 after the murder of an investigative reporter Ján Kuciak.