List four elections that might be considered "critical" or "realigning." explain why.

The answers are; [1] Andrew Jackson founded the Modern American Political Party [aka Democratic Party]

[2] Abraham Lincoln started the civil war, leading to a sixty-year strive for republicans in the government. 

[3] Franklin Roosevelt created the New Deal coalition. Democratic Party gained support from people that were involved with the New Deal plan.

[4] Nixon created Republican dominance. House of Representatives has a Republican majority now.

Hope this helped! :)

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.