Yes.
The Supreme Court had declared that slavery was legal in every state of the Union. Stephen Douglas said that the people of each new state should vote whether it should be a slave-state or free soil, and pass local legislation in line with their verdict. The people of Illinois agreed with this idea, and Douglas got the senatorial seat over Lincoln.
This was because Abraham Lincoln wanted there to be no more slaves and no more slavery.
Because he Wanted there to be no more slaves
Abraham Lincoln wanted to run for the Senate so that he could make laws to stop slavery in America.
JOHN BROWN'S RAID ! - apex
Abraham Lincoln ran for the senate against Stephen Douglas. They engaged in a series of debates known as the Lincoln-Douglas debates, where they discussed various issues, with a primary focus on slavery. These debates helped elevate Lincoln's political profile and contributed to his eventual presidency.
Slavery in the territories
....The Lincoln Douglas Debates
slavery
That's what the debates were about - was slavery protected by the Constitution? If so, how could the new states vote to be free soil?
Abraham Lincoln
Slavery in the territories
Slavery became illegal.
slavery in the territories
The extension of slavery