A European effort to update international tax rules has met such stiff opposition from the United States that some governments support waiting until after the American presidential election to try to finalize negotiations, according to an official familiar with the discussions.

Attempts to create a global minimum corporate tax and to give countries more latitude to impose levies on large multinational tech companies have already been delayed, but the push may stand a better chance of success next year should Democrat Joe Biden win in November, said two European officials, who asked not to be named discussing internal deliberations.

President Donald Trump has disrupted trans-Atlantic relations during his three and a half years in office, calling the European Union worse than China when it comes to trade and announcing a plan this week to withdraw 12,000 troops from Germany after repeatedly hectoring the ally over its defense spending. With the election less than 100 days away and Trump trailing in national polls, leaders are weighing whether sensitive negotiations may face fewer obstacles if a new administration takes office in January.