The normally reserved head of the global crisis lender promised in October to perform for the US Congress if that would get it to endorse crucial, much-delayed reforms for the Fund.
"I will do belly-dancing if that's what it takes to get the US to ratify," she said.
But now the Republican victory in Tuesday's US elections has likely placed ratification further away -- and she will have to work harder to convince the IMF's largest shareholder.
"The change in the US political landscape is not a good omen for progress on IMF reforms," said Eswar Prasad, a former IMF official.
Since 2012, the Obama administration has sought to convince Republicans in Congress to formally endorse the reform -- decided in 2010 with US support -- that doubles its financial resources and increases slightly the voting power in the IMF of emerging economies like China, Russia and Brazil.
As the largest shareholder, the US endorsement is necessary to implement the reforms. All other major economies have ratified them already.
But the White House has repeatedly failed to get the ratification through Congress, against opposition from Republicans.
Some Republicans have said specifically they do not want to increase the influence of China and Russia in the Fund -- even though the US would remain the dominant IMF power after the reforms.
That leaves the emerging economies increasingly impatient. China, the world's second largest economy, only holds 4 per cent of the voting rights, barely more than Italy, whose economy is one-fifth the size.
In reaction, in July Brazil, Russia, India, China and South Africa joined hands to create their own monetary fund for emergency needs.