Joan Burton has accused Fine Gael of focusing only on high earners - and says people on lower wages would be ignored by the government if Labour weren't in it.
The claim comes as the parties begin to draw the battle lines for next year's general election.
The Tánaiste says the two parties working together offer a "balanced" government that supports both business and vulnerable people.
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But she says if Fine Gael governed alone - the conditions of ordinary workers would be far worse: