Original sentence: During June 2009, pressure on Brown to stand down resurfaced due to a number of factors, including his Commons defeat over Gurkha immigration, the expenses scandal and Labour's poor results in the County Council and European elections on 5 June 2009, where the Labour share of the vote fell to just 15%
Edited sentence: During June 2009, pressure on Brown to stand down resurfaced due to a number of factors, including his Commons defeat over Gurkha immigration, the expenses scandal and Labour's worst results since 1918 in the County Council and European elections on 5 June 2009, where the Labour share of the vote fell to just 15%