This is "inside" Jewish humor, so read it with an accent.
During a gigantic celebration in Red Square, after Trotsky had been sent into exile, Stalin, on Lenin's great tomb, suddenly and excitedly raise his hand to still the acclamations: "Comrades, comrades! A most historic event! A cablegram-of congratulations-from Trotsky!"
The hordes cheered and chortled and cheered again, and Stailin read the cablegram aloud:
You were right and I was wrong. You are the true heir of Lenin. I should apologize.
You can imagine what a roar, what an explosion of astonishment and triumph erupted in Red Square now!
But in the first row, below the podium, a little tailor called, "Pst!Pst! Comrade Stalin."
Stalin leaned down.
The tailor said, "Such a message, Comrade Stalin. For the ages! But you read it without the right feeling!"
Whereupon Stalin raised his hand and stilled the throng once more. "Comrades! Here is a simple worker, a loyal Communist, who says I haven't read the message with enough feeling! Come, Comrade Worker! Up here! You read this historic communication!"
So the little tailor went up to the reviewing stand and took the cablegram from Stalin and read:
Then he cleared his throat, and sang out:
You were right and I was wrong?? You are the true heir of Lenin?? I should apologize??!!