The pact has the potential to draw Europe and the U.S. closer together through regulatory cooperation and the elimination of existing trade barriers. With two-way trade in goods and services between the U.S. and EU at over $1 trillion each year, both sides have a large stake in reaching an agreement. In addition, the United Kingdom’s decision to leave the EU, known popularly as Brexit, has created uncertainty for American businesses’ future access to the EU market and for American investments in the UK that depend upon access to other European markets. The UK and EU have not yet begun negotiating the terms under which future trade in goods and services—free until now—will operate.

This Friday, EU trade ministers are meeting in Bratislava, Slovakia, to discuss the trade negotiation agenda of the union, including the future of trans-Atlantic trade talks. The top EU and U.S. negotiators last Thursday pledged to do their best to make major progress on the agreement by year-end.

Though TTIP discussions are now into their third year, there is still a ways to go. The UK, traditionally a strong voice for trade liberalization, is no longer in a position to make the affirmative case due to Brexit. Will another EU member state pick up the cause? Right now, the outlook is not good. The French trade minister said in August that TTIP talks ought to be suspended. And surprisingly, the economic affairs minister of Germany, by far one of the largest beneficiaries of open international trade, declared around that time that the free trade talks have failed. Other EU member states have expressed various issues with the partnership, but have not called for a suspension of talks.

While positive leadership could push the deal forward, European leaders are instead reaching for the pause button, blaming the U.S. for not offering enough concessions. For example, the German government lamented U.S. resistance to a provision requiring American states and cities to allow competitive bidding by European suppliers. The French and Germans have also cited U.S. resistance to geographical indications, which would dictate that U.S. dairy producers allow European producers to retain exclusive rights to the names of certain names of food products. This would mean that no future Wisconsin farmer could produce and market feta or parmesan cheese, as those names would be reserved for cheese made in Greece and Italy, respectively.

Ironing out all of these details will be a time-consuming process that could only be reasonably expected at the very end of a negotiating process. So are these the real reasons Germany and France are calling for suspension of the trade talks? The more likely explanation is that they are bowing to vocal domestic groups that oppose trade liberalization. As TTIP would be the largest regional trade agreement ever negotiated, it has become a prime target of Europe’s anti-trade forces. But failure to consummate a deal would be a mistake, as the TTIP will benefit all involved.

A blueprint for improving global trade

The current World Trade Organization (WTO) rules were adopted two decades ago. The agreements negotiated at that time were a major advance for trade, but the global economy has changed a lot since then. At the time, there was little e-commerce, which requires the free flow of cross-border data over the Internet. In addition, state-owned enterprises were less of a factor in world trade and did not elicit the same concerns about unfair government-backed commercial competition that they do today. The WTO rules do not address either of these issues. The TTIP will put into place rules both for assuring the free flow of data across borders and setting standards for commercial competition from state-owned companies.

The best chance for substantial progress lies with the world’s two largest free-market-oriented trading partners: the EU and the U.S. Whatever the two can agree to, together with the potential TPP provisions, is likely to become the basis for a global trading system free of unnecessary border tariffs, customs procedures, and product standards. While a global agreement is not yet possible to achieve this objective, the TTIP would be an indispensable first step. What’s more, the TTIP is designed with an open architecture, meaning that other countries can join later on.

Improved market access

Significant obstacles inhibit trade between the U.S. and EU, in particular with regard to tariffs and product standards. For example, American-made cars face a 10% tariff going into Europe, and European cars face a 2.5% tariff entering the U.S. A greater barrier lies in the two sides’ differing safety standards. Standards and approval processes also stand in the way of trade in pharmaceuticals, cosmetics, medical devices, and a host of other products.

The same is true for services. Two-way trade in services related to software, intellectual property, finances, travel, professional and management consulting, and transportation runs at about $400 billion per year, but is restrained by differing standards and certification procedures. The TTIP would set up cooperative mechanisms for U.S. and EU regulators to communicate as they develop new standards, making it far more likely that their regulations could become compatible.

Additionally, e-commerce will be boosted by guaranteed freedom of cross-border data flows. These benefits wouldn’t be limited to multinational companies. For example, most of the sellers on eBay are in fact exporters—they sell to anyone, anywhere. Small- and medium-scale enterprises will benefit from digital access to other markets, as well as access to more information on regulatory processes and customs procedures.

A path forward beyond Brexit

Improving trans-Atlantic economic relations should not be put on hold while the EU and UK resolve their future economic arrangement after Brexit. In fact, the reverse is true. The TTIP can be part of the solution, providing greater openness not only for trans-Atlantic trade and investment, but trade and investment across the English Channel as well. The TTIP can also provide a template for post-Brexit trade relations among the U.S., UK and EU. Lastly, a high-quality TTIP agreement can help provide stability in an uncertain investment climate.

The TTIP is unlikely to be terminated at the Bratislava meeting. Regardless, political leaders would be much wiser to express support for the deal than to join the chorus of doubters.

Alan Wm. Wolff served as a senior trade negotiator in Republican and Democratic administrations, is chairman of the National Foreign Trade Council, and is a senior counsel with the Washington DC office of Dentons.