I do not disagree with most of what's written here by Gringo Nico and Queso.
My point was less to point out the likelihood of CFK being reelected in 2019 - though the threat of that happening and of her beating down Macri in a war of attrition is substantially higher than zero - but rather to say that goodbyes are premature, as for the moment she is not going anywhere. Also, that only through that lens does her behaviour become coherent. Whether her strategy will
work in the long run is a different story altogether. I certainly
hope not, and actually don't
think it will work, but it's way too early to tell.
The whole point of wanting the handover to take place in the Congress is to cement that place as her/the new seat of power. As well, she has so far succeeded in ensuring that she remains at the helm of peronismo. Absent a well-coordinated coup, she is likely to stay there for a while.
Her trump cards are almost total control of the Senate - absent a huge desertion - and the possibility that La Campora etc, possibly allied with (some) labor, will create mayhem on the streets (saqueos etc). Her chances of success are dependent on a) how well Macri succeeds at governing, and providing security, b ) how well she can hold on to power within peronismo, as mentioned by Queso. That, in turn, depends on a).
CFK's has at her service an unknown-in-size, possibly huge, body of youth that has sworn loyalty to her (think
this), and Maximo - who it may not be wise to underestimate. Macri's trump cards are his ability to build consensus, and the existence of a police force that he can firmly rely on from day one - I refer to the Metropolitana, which will certainly rise in importance at least until the Policia Federal is firmly under control.
Regarding Menem, that's a slightly different story: he had long ceased to be a real threat to anybody. He had lost an election and had effectively been deposed from any real power: he was not a thorn in anyone's side. CFK seems to be licking her lips at the prospect of being a thorn in Macri's side, so the calculus is different both regarding her chances at retaining power as well as the value of aggressively prosecuting her. I agree with Queso, and wrote myself as well, that actually prosecuting her can be counterproductive. More important is that she know that he can do so, and that ultimately he may well succeed, as a nuclear option.