"I remain hopeful that we can work together to ensure Congress strengthens our government's commitment to buying American-made goods in order to improve wages, boost growth, and support American manufacturers," Baldwin wrote.
The Wisconsin Democrat is pushing for a Buy American law that would require U-S water infrastructure projects to use American steel.
"I hope that your forthcoming report will make clear that foreign steel will not qualify for preferential treatment under our Buy American laws," she wrote in her letter.
During his April visit to Kenosha, Trump was asked about Senator Baldwin's legislation. "I support the concept of everything from the U-S," Trump told TMJ4's Charles Benson.
Trump also said at that time, when he approved the Keystone pipeline he called on the pipes being made in America.
"So all pipelines that are coming into this country from now on has to be American steel - which is really a big factor," said Trump. "So I'm very much into that and I agree with her 100 percent."
As to Baldwin's letter, a White House official said, "The report Senator Baldwin is referring to is an internal report that will be used to inform the White House’s policymaking process on this issue. If there are any policy changes to share, we will let you know at the appropriate time."