Final answer:
The pressing issue in the Phoenix Tribune of 1919 was the aftermath of World War I, which included an epidemic, anticommunist hysteria, and economic uncertainty, all exacerbated by President Wilson's absence. Technological advances in the 19th century had enhanced newspaper production and distribution, which in turn heightened their influence on public opinion and politics during this challenging time.
Step-by-step explanation:
The pressing issue in the Phoenix Tribune of 1919 is likely related to the challenges that America faced post-World War I, including an epidemic, anticommunist hysteria, and economic uncertainty. The technological advances in printing and the expansion of roads and waterways that occurred between 1830 and 1860 made the production and distribution of newspapers more efficient, leading to a rise in newspapers' influence on public opinion and policy. However, the year 1919 was particularly tumultuous due to the combination of these challenges and the absence of President Wilson, who was in Paris for peace talks, leaving the country without clear leadership. This period saw labor strife and political disorder, with journalism playing a critical role in either highlighting or sensationalizing the issues at hand. Moreover, the growing influence of newspapers like the New-York Tribune, which aimed for high journalistic standards, had already set the tone for how deeply the press could impact public perception and national policy.