It has been 4 years since Donald Trump promised to return greatness to the United States – “Make America Great Again”. But as he seeks a new term, experts note that the perception of a relative decline in American hegemony, already seen under Obama’s tenure, has intensified under the Trump presidency. In this context, 14 international researchers analyzed how the allies of the United States anticipated this loss of relative hegemony. America’s Allies and the Decline of U.S. Hegemony, published by UK Routledge Editions, is co-edited by our experts Justin Massie and Jonathan Paquin. Sylvie Noël speaks with Jonathan Paquin, professor of political science at Laval University.