By the later 1960s and 1970s the party, bereft of MPs and a popular voting base, decided to concentrate on exploiting its influence within the trades union movement. This was to be relatively successful - members and sympathisers held several senior positions in the movement - but was to backfire spectacularly as popular disquiet at what was perceived as excessive and irresponsible trade union power was a major factor in securing the election of a [[Conservative Party]] government under [[Margaret Thatcher]] in 1979. | By the later 1960s and 1970s the party, bereft of MPs and a popular voting base, decided to concentrate on exploiting its influence within the trades union movement. This was to be relatively successful - members and sympathisers held several senior positions in the movement - but was to backfire spectacularly as popular disquiet at what was perceived as excessive and irresponsible trade union power was a major factor in securing the election of a [[Conservative Party]] government under [[Margaret Thatcher]] in 1979. |