The southern democrats refused to nominate stephen douglas because:
-he supported the rights of southern democrats moving into territories.
-as a senator, he supported the north too well.
-he flip flopped on his views to often.
-he would not change his stand on popular sovereignty.

He would not change his stand on popular sovereignty.

Explanation:

Stephen Douglas was an American politician and lawyer who was also the Democratic Party nominee for President in the 1860 election (where he was defeated by Abraham Lincoln). Douglas was a strong advocate of popular sovereignty. This was the belief that each territory should be allowed to determine whether to allow slavery to exist within its borders. The fact that Douglas would not change his stand on popular sovereignty meant that the Southern Democrats refused to nominate him.

if a bill passes in the house of representatives, it goes through a similar process in the senate. before a bill becomes law, it must be approved by both chambers of the legislature. the bill must pass with the same wording in the house of representatives and the senate before it can go to the governor for approval.

the law supported victims of political persecution.

explanation: