In 2013, he was elected to the Landtag of Liechtenstein as a member of The Independents.
[1] In August 2018 Landtag member Erich Hasler was expelled from The Independents under controversial circumstances.
Elkuch, along with Thomas Rehak, sided with Hasler and left the party.
[2] The following month, the three men founded the Democrats for Liechtenstein.
[3] In the 2021 Liechtenstein general election he was re-elected to the Landtag as a member of the party in his own right.