Labor MP Ali France thanks late son in first speech to parliament after unseating Peter Dutton

Melbourne member Sarah Witty, who defeated former Greens leader Adam Bandt, also credits profound impact of family life on her politics

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The newly minted Labor MP Ali France, who unexpectedly unseated former opposition leader Peter Dutton in the May election, has detailed her epic journey" to Canberra in a poignant first speech.

France who battled Dutton over seven years for the seat of Dickson, north of Brisbane, was the first of Labor's fresh faces to introduce themselves to the 48th parliament on Tuesday.