Dissent against the parade is also coming partly from within one of Trump’s most reliable support bases: veterans. Although former U.S. military personnel have historically voted with wide margins in favor of Trump and the Republican Party, there is a growing discontent among some within the community.

Until recently, the Army’s long-planned birthday celebration did not include a big parade. Added under the Trump administration, the event, featuring hundreds of military vehicles and aircraft and thousands of soldiers, has divided veterans.