Now it just so happened that Illinois was in deep financial trouble in 1840. Its bank had given out more paper money than it had gold and silver in reserve. That's when the Democrats saw their chance to destroy the despised institution. They agreed to allow it to suspend its obligation to exchange its paper money for specie, but only for the remainder of the legislative session.
That's when Lincoln determined to keep the legislature in session in order to buy precious time for the bank to find a way to survive, and that's how he jumped into the national limelight on December 5, 1840. On that date, the Democrats proposed an early adjournment, knowing this would bring a speedy end to the State Bank. The Whigs tried to counter by leaving the capitol building before the vote, but the doors were locked. That's when Lincoln made his move. He headed for the second story, opened a window and jumped to the ground!