Democrats’ gains in the 2026 U.S. midterms could complicate Donald Trump’s China diplomacy and embolden Congress to challenge his tariff agenda, but Washington’s broader Asia policy — especially efforts to build critical mineral supply chains outside China — is unlikely to shift, analysts say.
According to Channel News Asia, now that the midterm electoral pressure is behind him, Trump may feel freer to pursue an aggressive trade policy, potentially adding more tariffs on China and other Asian economies. But the Democrats’ electoral gains could also embolden lawmakers from both parties to push back against the president’s trade agenda, opening the door to greater congressional scrutiny.
Why Trump may double down on tariffs after losing midterm pressure
Stephen Olson, a visiting senior fellow at the ISEAS-Yusof Ishak Institute in Singapore, warned that the post-midterm Trump could move faster on trade actions. “Section 301 tariffs on excess capacity could be forthcoming shortly and new trade actions against key partners could also be opened,” Olson said. “That obviously would be bad news, especially in the Indo-Pacific.” This refers to the clause in U.S. trade law permitting Washington to probe and act against foreign nations it deems to be practicing unfair trade.
Here is why that matters: Section 301 gives the executive branch sweeping unilateral authority, meaning a president freed from midterm accountability faces few institutional brakes on tariff escalation against Beijing.
Where Congress could push back — and where it won’t
But there is a catch. The bigger question, Olson noted, is whether Democrats can meaningfully constrain Trump’s tariff policies at all, given the president’s considerable executive authority over trade. Although Trump would retain extensive authority, Congress might advocate for additional tariff exemptions on goods that directly impact U.S. consumers. Legislators might also attempt to take back some of the trade policy authority that Congress has handed to the executive branch over the years.
“Depending on how badly the Republicans get wiped out, and how badly Trump’s aura of political potency gets dented, Congress, including pro-free trade Republicans who have been intimidated into standing down, might be inclined to reassert some degree of Congressional authority on trade,” Olson said.
Asian countries, particularly U.S. allies such as South Korea and Japan, will be “hoping that Democrats in Congress will be able to moderate the worst impacts of Trump’s trade policies,” according to Reuters columnist Clyde Russell. In a Wednesday commentary, Russell wrote that these nations would favor a rollback of tariffs and more consistent treatment from Washington toward its allies.
What stays bipartisan: critical minerals and supply chains
Not all aspects of Trump’s economic agenda are likely to face resistance, Russell said. Efforts by Washington to develop critical mineral supply chains outside China — including investments in rare earths, tungsten and lithium — constitute an area where bipartisan support could maintain continuity even as the tariff conflict escalates.
| Policy area | Effect of Democratic midterm gains | Likely trajectory |
|---|---|---|
| Section 301 tariffs on China / excess capacity | Trump less constrained after midterms; Congress may seek exemptions for consumer goods | Further tariffs and new trade actions possible, especially in the Indo-Pacific |
| Tariffs on allies (South Korea, Japan) | Allies hope Democrats in Congress moderate the worst impacts | Possible rollback and greater consistency, per Reuters’ Clyde Russell |
| Critical mineral supply chains (rare earths, tungsten, lithium) | Bipartisan support expected to continue | Continuity — investments outside China likely to proceed regardless |
How this ripples through Asian economies and global supply chains
Similarly, bipartisan support could ensure the continuity of Washington’s drive to build critical mineral supply chains outside China, including investments in rare earths, tungsten and lithium.
