A union and various steel industry groups are calling for President Joe Biden to keep in place the steel tariffs imposed by former President Donald Trump.

Leaders of seven groups wrote a letter this week addressed directly to the president on behalf of U.S. steel producers, fabricators, and workers emphasizing the impact that Trump’s 2018 steel tariffs had on their industry. They said that the move was necessary because surges in steel imports threatened nearly 2 million domestic jobs.