Republican Sen. Rob Portman and Democrat Sherrod Brown don’t often see eye-to-eye. But one big exception involves Chinese imports.

And the two are leading a group of senators pushing the U.S. Commerce Department to continue antidumping duties of imports of Chinese steel tubes.

For years, U.S. manufacturers argued that the Chinese were subsidizing the production of the tubes. The U.S. imposed anti-dumping tariffs, which China maintains are based on fallacies and amount to trade protectionism.