On Tuesday Leo Varadkar will end weeks of speculation about the timing of the election when he will formally request at 2pm that the president dissolves the current parliament.
"We have a deal on Brexit and in Northern Ireland", the prime minister added, explaining the decision.
Posters will start appearing all over Co Kildare today as the general election has been announced for Saturday, February 8.
Katherine Zappone, the children's minister and an independent lawmaker, said on her way into the cabinet meeting that she expected it to be the last time her colleagues met ahead of a February poll.
With Fine Gael and Fianna Fail likely to be close in the polls, a majority is unlikely for either party while the likes of Labour and Sinn Fein will be eyeing more seats than 2016.
While the current Irish government led by Varadkar is vulnerable to the opposition parties' attacks on housing and health issues, it has indeed achieved something that will help it in the coming election, said local observers.
Fianna Fáil leader Micheál Martin says the 2020 election will be "vital" for the Irish people. Ireland is struggling with a housing crisis and has faced hospital overcrowding. Our economy has been stronger.
"We have a plan for fairer taxes - for future jobs and for rural Ireland - to put that right", he said. There are more people at work than ever before, incomes are rising, poverty is falling and public finances are back in order.
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"Many people don't feel the strength of our economy in their pockets and they don't see it in their payslips or in their towns and parishes".