Answer:
During World War II, the United States and the Soviet Union fought together as allies against the Axis powers. However, the relationship between the two nations was a tense one. Americans had long been wary of Soviet communism and concerned about Russian leader Joseph Stalin’s tyrannical rule of his own country. For their part, the Soviets resented the Americans’ decades-long refusal to treat the USSR as a legitimate part of the international community as well as their delayed entry into World War II, which resulted in the deaths of tens of millions of Russians.
Abraham Lincoln winning the President contributed most to the Civil War. After he won the election, southerners were scared that Lincoln would try to get rid of slavery and change their traditions. Once Abe Lincoln was elected, states started to secede (like South Carolina) from the Union just a couple months later. This secession ultimately lead to the confrontation at Fort Sumter, leading to the start of the Civil War.
Answer:
I think that the conclusion that I can draw in regards to him helping Hilary is that he endorsed her. The words of a former US President would likely make Hilary look really good in the limelight. Which is what happened. Since Obama was fond of her and publicly endorsed her, people thought she'd be a good choice in terms of Obama's judgement.