 According to prominent inter-war lawyer Michał Pius Römer, in 1921 Sleževičius was "one of the most powerful men in the country".In the elections of 1922, Sleževičius was elected to the First Seimas, but LSLDP ended up with only 1% of the vote and 5 seats.On 24 November 1922, the party merged with the Peasant Union to form the Lithuanian Popular Peasants' Union (LVLS), with Sleževičius presiding over the political group in the Seimas.