Election Extra: Horse-trading begins for seats at cabinet, and will we have a rotating Taoiseach?

Horse-trading begins for a place at the table with Fianna Fáil and Fine Gael, but you can expect Simon Harris to be Taoiseach for Christmas before handing the office back to Micheál Martin in the new year. But what about long-term? How many seats do Fianna Fáil need to earn to sideline Simon Harris into a full-time Tánaiste roll?

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