He started his political career in the Liberal Alliance of Montenegro (LSCG) as coordinator for sport.

After decision of Liberal Alliance of Montenegro to freeze its work in 2005, Popović opted to join the party's ex-members who were formerly excluded from LSCG due to corruption charges, gathered around the newly formed Liberal Party of Montenegro (LP) led by Miodrag Živković.

He was a member of the Council of the European Movement for Independent Montenegro at the state and municipal level.

At the 2012 parliamentary elections LP entered the coalition with governing parties DPS and SDP, thus gaining one seat in the Parliament, which was occupied by Popović.

However, this change has been only formal, because the minority group is also an integral part of the ruling majority.