President Trump is reportedly pushing for higher blanket tariffs on imports from the European Union, throwing a wrench in negotiations ahead of an Aug. 1 deadline for sweeping duties to take effect. The Financial Times reported that Trump wants a minimum of a 15% to 20% tariff on EU goods as part of any deal.

A recent round of tariff threats has added a new layer of uncertainty, but the monthslong track record affords economists an opportunity to evaluate what the tariffs have yielded