Mary Lou McDonald could well be Taoiseach but, if she is, she will oversee the weakest government in the history of the State.
Yes, she may convince some smaller parties and Independents to support her in a Dáil vote to be Taoiseach.
She might convince the 12 Green Party TDs to back her, which is likely. Possibly even the five Solidarity-People Before Profit TDs, although they'll be a handful.
Maybe even the Social Democrats. The two party leaders, who are in the twilight of their political careers, might be interested in going in.
But the four new and youthful Social Democrat TDs would be mad to go into government at this point.
The six-member Labour Party will tell them why and you can bet the vast majority of its TDs will be happy to sit this one out too.
But let's say they all do decide to support Ms McDonald for Taoiseach, then you have 66 TDs. Still a long way short of the 80 TDs needed for a majority government.
However, she may even convince a few left-leaning Independent TDs such as Catherine Connelly and Thomas Pringle to back her, or even former party colleagues Peadar Tóibín and Carol Nolan. So we are at 70, but still 10 short.
But what if she does get this far, what next?
There is a view in Fianna Fáil that if Ms McDonald can march into the Dáil with a decent haul of TDs supporting her for Taoiseach they should abstain.
Fianna Fáil MEP Billy Kelleher said as much yesterday.
"If Mary Lou McDonald comes to the parliament with a sizeable number of people beyond her own party, then obviously there's a responsibility on everyone to ensure we have a government," he said.
The same view is being held by other senior front-bench Fianna Fáil TDs - even if it may not be held by party leader Micheál Martin and his team. More of Martin later.
Those who are for the idea believe they should let her take the job, find the €22bn for tax cuts, property tax abolition and a month's free rent for every tenant.
In this scenario, Ms McDonald and her left-wing comrades would be given the keys to Government Buildings and told "knock yourself out", which is exactly what Fianna Fáil would hope they would do.
Fianna Fáil would be on the oposition benches, as would Fine Gael, picking holes in absolutely everything they did for as long as it decides to leave them in power.
The Sinn Féin and left alliance, without a minority government supporting partner, could be collapsed at any time.
The power would in fact be with the opposition, who could let them play politics for a few months until the public turned on them and then table a motion of no confidence.
It may not even get near a budget but, if it did, the government would have to negotiate with the opposition to get it voted through the Dáil.
Fianna Fáil and Fine Gael TDs are almost relishing the idea of being in opposition. After years of criticism from Sinn Féin and the left, they feel it is time to expose their critics.
They claimed to have all the ideas so now they will have the opportunity to enact them- but they will be on a short leash.
The opposition could rein them in when they wanted to, or give them space to expose their flaws when it suited too.
Ms McDonald may not go for this and it could serve as a great excuse for Sinn Féin to go to the country again.
But if she is serious about governing and fixing the country's woes, surely she would allow a vote for Taoiseach to go before the Dáil.
There is the added allure of her being the first female Taoiseach, which you can be sure is not lost on her as she seeks to form a government. It would be a very weak government, which would be functioning hand to mouth, but a portrait of McDonald would have to be hung in Leinster House.
Sinn Féin might even benefit from such a scenario if it managed to convince voters it was being hamstrung by the opposition. But it is always harder to garner sympathy from the government benches.
The other big question arising from Fianna Fáil being on the opposition benches is what happens to Micheál Martin?
He has had his innings, some are beginning to say. If he is doing a deal with Sinn Féin or Fine Gael, then it will be time for him to step aside and let a new generation take over.
Fianna Fáil TDs such as Barry Cowen, Michael McGrath and even Darragh O'Brien are being spoken about as possible successors. John McGuinness is always lurking in the background too.
Mr Martin will have to act swiftly if he is to remain at the helm of the party to which he has dedicated most of his life.
Until the General Election results, Mr Martin's political decision-making was lauded by his party supporters.
But that is changing, and changing rapidly. He will not be allowed to lead from opposition and that is where an increasing number of his own party want to be.
Mr Martin could be saved by the new crop of Fianna Fáil TDs who are happy to have been elected and feel they owe their loyalty to the party leader.
Those who have supported him for the best part of a decade will have given him plenty of loyalty for little return.