Gladly, current Democrat. It is a 30% tariff on most steel products and a 15% tariff on the remainder.
and what party does the president belong to that put it on steel?
He is a republican who, in imposing that rate, shunned his own party's official republican platform:
"International trade has become the world’s most powerful economic force. International trade is not the creation of the world’s rulers, but of the world’s peoples, who strive for a better future and break down any barriers governments may erect to it. The result is today’s global economy of open markets in democratic nations. That system is poised to sweep away both the counterproductive vestiges of protectionism and the backwater remnants of Marxism. We launched this revolution during the Reagan and Bush Administrations. Now we will bring it to completion: U.S. leadership of a global economy without limits to growth." - Article I of the Republican Party national platform, adopted in 2000 (emphasis added)
In doing so he also reneged on his own public professions of free trade and effectively threw a bone to the protectionists on the left including those who come from your apparent organization of choice, the AFL-CIO.