The first congress of the Slovak branch was held in February 1990 in Banská Bystrica, with Juraj Mesík elected as chairman.

In the 1990 Slovak elections the party received 3.1% of the vote, winning six of the 150 seats in the National Council.

In the 1992 Slovak elections the party's vote share fell to 2.1% and it lost all six seats.

It had some candidates on the Free Forum list in the 2006 elections, but failed to win a seat.

In the 2010 elections it had candidates on the Party of the Democratic Left list, again failing to win a seat.