President Donald Trump on Wednesday injected himself into a fresh controversy that intertwined the culture wars with the economy, as he demanded a boycott of a major tire company headquartered in the battleground state of Ohio over a reported ban on Trump campaign apparel by its workers.

Goodyear says its latest concept tyre, introduced at this year’s Geneva International Motor Show, “quite literally brings the future of mobility to life”, offering cleaner, more convenient, safer and more sustainable urban mobility.