Complex sentence: For the 1951 election, the party changed its name to "The list of Sephardim and Oriental Communities, Old Timers and Immigrants", and lost about half its share of the vote (1.8%) and half its seats, slumping to just two representatives.
Split into simpler sentences: For the 1951 election, the party changed its name to "The list of Sephardim and Oriental Communities, Old Timers and Immigrants". However, they lost around half their share of the vote (1.8%) and half their seats, slumping to just two representatives.