The U.S. is expected to remove 50% tariffs on certain agriculture and forestry products as early as Friday. 

The cuts are part of an effort by President Donald Trump to help Maine Sen. Susan Collings, who is running for reelection, as well as other Republicans, in the midterms, the Wall Street Journal reported, citing unnamed sources. 

The Journal's sources said that the scope of the tariff reductions, as well as their timing, could change. 

Collins had requested relief from tariffs that have impacted Maine industries and consumers. The state's economy is heavily reliant on trade with Canada, and Collings has broken with Trump on tariff issues. Her Democratic challenger, Troy Jackson, has made Trump's Canadian tariffs a central issue in his campaign. 

A White House official said any tariff announcements come directly from the administration, and any reports ahead of announcements are entirely speculation. 

In late August, Trump applied 50% tariffs on about $20 billion worth of Canadian goods after trade talks between the U.S. and Canada broke down.