Biden's floor speech was on June 25, 1992, more than three months later in the election cycle than it is now.
There was no Supreme Court vacancy to fill.
There was no nominee to consider.
The Senate never took a vote to adopt a rule to delay consideration of a nominee until after the election.
Nonetheless, Biden took to the floor
in a speech addressing the Senate president to urge delay if a vacancy did appear. But he didn't argue for a delay until the next president began his term, as McConnell is doing. He said the nomination process should be put off until after the election, which was on Nov. 3, 1992.