Passage: Prior to the Republican convention, the Lincoln campaign began cultivating a nationwide youth organization, the Wide Awakes, which it used to generate popular support throughout the country to spearhead voter registration drives, thinking that new voters and young voters tended to embrace new parties. Lincoln's ideas of abolishing slavery grew, drawing more supporters. People of the Northern states knew the Southern states would vote against Lincoln and rallied supporters for Lincoln.As Douglas and the other candidates campaigned, Lincoln was the only one to give no speeches. Instead, he relied on the enthusiasm of the Republican Party. The party did the leg work that produced majorities across the North, and produced an abundance of campaign posters, leaflets, and newspaper editorials. Thousands of Republican speakers focused first on the party platform, and second on Lincoln's life story, emphasizing his childhood poverty. The goal was to demonstrate the superior power of "free labor", whereby a common farm boy could work his way to the top by his own efforts. The Republican Party's production of campaign literature dwarfed the combined opposition; a Chicago Tribune writer produced a pamphlet that detailed Lincoln's life, and sold 100,000–200,000 copies.

Question: How many copies of the pamphlet were sold by the Tribune writer?
100,000–200,000