WASHINGTON, Nov 6 (Reuters) – Former President Donald Trump‘s return to the White House could mean tougher enforcement of U.S. oil sanctions against Iran, potentially trimming global supplies, but his administration could struggle to get China, Iran’s top crude customer, to cooperate, analysts said.

Cracking down on OPEC-member Iran would support global oil prices, but the effect could also be offset by other Trump policies, from measures to expand domestic drilling, the imposition of tariffs on China that could depress economic activity, or an easing of relations with Russia that could unfetter its sanctioned crude shipments.