No, it is false that the <span>Southern Democrats refused to nominate Stephen Douglas because he would not change his stand on popular sovereignty, since in fact he was the Democrat who ended up running against Lincoln. </span>
The reason why troops fire on the protesters at tiananmen square was: , the protesters were calling for democratic reforms
Tiananmen square is located in china and the protest happened in 1989. China has always been ruled by a strong communists/authoritarian rulers in that period. When the protesters called for democratic reforms, the position of the power holder in China could be threatened. This is why they were shots
People may follow their nation without objecting to its action. regardless of the attrocities that may be commited
I would say either Running executive departments or setting a federal budget.