(1) Tousignant served in the 31st and 32nd Canadian Parliament before being defeated by Gabriel Desjardins of the Progressive Conservative Party in 1984 .
(2) Gabriel Desjardins served in the 31st and 32nd Canadian Parliaments before being defeated in the 1984 election by Tousignant of the Progressive Conservative party .

Do these two sentences mean the same thing?
no