This is the time when a politician is nearly done with his/her term and the time before they are reelected.
In this case, the lame duck vice-president would become president.
The incumbent is still the president, and the new one is the president elect.
lame duck
George HW Bush
lame duck
"Sitting duck president" is a colloquial term that refers to a president who is perceived as being unprotected or vulnerable to attack or criticism. It suggests that the president is in a precarious position and easily targeted by adversaries or challenges.
It is called "lame duck"
He is a lame duck.
It is called a "Lame Duck."
The period between election day (November 4th) and the inauguration of the next president (January 21st). The sitting-president is considered a "lame duck" since the president-elect will be strolling into the oval office within a couple of months.
A president about to leave office is referred to as a "Lame Duck" president.
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