What do they have in common?

What does the current president of Russia have in common with two Titans of Russia's early Communist past?

Besides, a fervent lust for power....

They all have names (or nicknames) that end with 'in'.

Lenin and Stalin are long gone...  and are out
While, Putin is still around...       and unquestionably 'in'.

Lenin, born Vladimir Ilyich Ulyanov

22 April [O.S. 10 April] 1870 – 21 January 1924.

Stalin, born Ioseb Besarionis Dze Jugashvili 

18 December 1878^[1] – 5 March 1953. 

Putin, born Vladimir Vladimirovich Putin
 7 October 1952

Credits: (Photos, etc.) http://en.wikipedia.org

.