The best answer is, to the rise of totalitarian regimes in some countries.
A surge of totalitarianism could be expected in some European states following the political, social, and economic chaos of World War I and the Great Depression. Totalitarian regimes flourished in countries where fascism and communism were popular, including Germany, Italy, and the Russian Empire. Many leaders used the state's total control of economy and society associated with totalitarianism to address issues of their time which included job shortages, insufficient industry, or even foodstuffs depending on the region.
You cannot. These states are high in population which has a major impact on the presidential votes. If one does not win over said states, they will mostly lose the election.
Further fighting erupted over the canal, now between Britain and the newly alligned Germany and Turkey; however, the attempts at seizure were not successful. Soon after, France divided up a large portion of the Ottoman empire with Britain after the fall of Turkey in 1918. The two rivals were still neck and neck in competition.