Pakistan, Oct. 12 -- For Doug Rende, who runs an aluminum product manufacturer in the US state of Ohio, President Donald Trump's tariffs have meant millions of dollars more in annual costs - and recently, the Iran war has made shipments even more expensive.

Rende is chief executive at Shapes Unlimited, one of many American producers smarting from Trump's economic policies as midterm elections approach.

"Frustrating would be one word," Rende told AFP. "And I think that we're sensing a lack of trust in not only the administration but the governmental process, the role of Congress to rein in executive power," he added. Since returning to the presidency in January 2025, Trump has wielded executive authority to slap tariffs on various produc...