sentences:  Chamberlain ignored this and intensified his campaign in November 1905, resulting directly in Balfour's resignation on 4 December.With the Unionists divided and out of favour with many of their former supporters, the Liberal Party won the 1906 general election by a landslide, with the Unionists reduced to just 157 seats in the House of Commons.Although Balfour lost his seat in East Manchester, Chamberlain and his followers increased their majorities in the West Midlands.