Amid of the First Red Scare, many Americans were terrified of the spread of communist revolutions, like those that had taken place in Russia, Hungary, and Germany. While Coolidge had lost some friends among organized labor, conservatives across the nation had seen a rising star.[69] Although he usually acted with deliberation, the Boston police strike gave him a national reputation as a decisive leader, and as a strict enforcer of law and order.

1919 election
Coolidge inspects militia in Boston police strike
Coolidge and Cox were renominated for their respective offices in 1919. By this time Coolidge's supporters (especially Stearns) had publicized his actions in the Police Strike around the state and the nation and some of Coolidge's speeches were published in book form.[43] He faced the same opponent as in 1918, Richard Long, but this time Coolidge defeated him by 125,101 votes, more than seven times his margin of victory from a year earlier.[d] His actions in the police strike, combined with the massive electoral victory, led to suggestions that Coolidge run for president in 1920.