Jon Lieber, head of Eurasia Group's coverage of political and policy developments in Washington, DC, shares his perspective on US politics.

Is it really a Republican debate without President Trump?

Eight candidates are going to show up in Milwaukee this week in order to debate on stage for the right to be the Republican nominee for President, and all of them are going to be living in the shadow of the one candidate who won't show up: Donald J. Trump, former President of the United States, who's been indicted four times for various criminal charges across multiple jurisdictions in Georgia, New York, Washington, and Florida.