As Ivan's health declined, Peter became the sole leader of the procession.
In 1994, Tony Leon became the party's sole leader.
There was even a time the British considered him to be the sole leader of the Waziristan country.
The term can also be used to describe a state with three different military leaders who all claim to be the sole leader.
From 1977 to 2003, James Dobson served as the sole leader of the organization.
I'd like to point out, though, that I was not sole leader here.
She eventually became sole leader of the collective.
No longer a "first among equals", he became the sole political leader.
You have to feel sorry for Kramnik, he should have been the sole leader with one to play.
Rogozin soon ousted Glazyev to become the party's sole leader.