Short answers, pulled from the story.
Walter Lippmann coined the word stereotype in its modern psychological sense to describe fixed mental images that subject audiences to partial truths rather than full understanding. He introduced the term in his 1922 book Public Opinion, arguing that people interpret events through these pre-formed templates before gathering all the facts.
Walter Lippmann brought the phrase Cold War into common currency with his 1947 book of the same name. The term described the emerging geopolitical standoff between the United States and the Soviet Union following World War II.
The Lippmann-Dewey Debate centered on whether ordinary citizens are capable of governing themselves in a democracy. Lippmann argued that public opinion is irrational and that a specialized expert class must guide democratic governance; John Dewey, writing in his 1927 book The Public and Its Problems, rejected this call for a technocratic elite and maintained that an educated public could reach collective solutions. The debate began to be widely discussed in American communication studies circles by the late 1980s.
Walter Lippmann won two Pulitzer Prizes. He received a special Pulitzer Prize in 1958 for his syndicated column Today and Tomorrow, and he won the annual Pulitzer Prize for International Reporting in 1962 for his 1961 interview with Soviet Premier Nikita Khrushchev.
The Colloque Walter Lippmann was a gathering of primarily French and German liberal intellectuals convened by philosopher Louis Rougier in Paris in August 1938 to discuss Lippmann's book The Good Society. At that meeting, German sociologist Alexander Rustow coined the term neoliberalism to describe a rejection of laissez-faire liberalism. The Colloque is considered a precursor to the first meeting of the Mont Pelerin Society, which Friedrich von Hayek convened in 1947.
In 1932, Lippmann wrote that Franklin D. Roosevelt was a pleasant man who, without any important qualifications for the office, would very much like to be President. He called Roosevelt no crusader, no tribune of the people, and no enemy of entrenched privilege. Even after the New Deal, Lippmann maintained that his assessment of the 1932 Roosevelt was accurate, arguing the New Deal was wholly improvised after Roosevelt was elected.