Democrat Joe Biden would immediately consult with America’s main allies before deciding on the future of U.S. tariffs on China, seeking “collective leverage” to strengthen his hand against Beijing if he is elected president, Biden top advisers said on Wednesday.

In an interview with Reuters six days before the presidential election, the two Biden aides said the starting point would be to not repeat the mistakes of President Donald Trump when he slapped tariffs on European and Canadian goods as part of his “America First” agenda, antagonizing key U.S. partners.

“The failure of the Trump administration has been to go it alone. And that has given China an escape hatch,” said Jeffrey Prescott, a former senior foreign policy in the Obama administration.