She has understood well the behavior of congress vs CPI/CPM in the present political context and thinks to take advantage if possible to counter another road show circus of Rahul now in U.P.
They think that people are sheep and can be tamed or fooled as they like.
Mayavati can not be blamed alone when others show much more crude way of looking things in India.
Let her withdraw the support and announce it instead of announcing and threatening now and then.