Upon its formation, The Left had 71,000 members, of which 11,500 had been WASG members. Over the next two years the party grew, reaching a peak of 78,000 in 2009, after which point numbers began to decline.
The Left began with 71,000 members, comprising 11,500 former WASG supporters. The party then experienced growth, peaking at 78,000 in 2009 before experiencing a decline.