[1917, no later than April 29 (May 12)]

To the Presidium of the Delegates of the Front-line Congress
Dear comrades! I have received your invitation and sincerely thank you for it. I earnestly ask you to excuse me, as I am absolutely unable to be with you today due to
my commitments to the All-Russian Conference of our Party 2.
The Conference has been delayed, will likely run all night, and I cannot be absent for a minute.
With comradely greetings
N. Lenin