Senate Democrats are putting Republican support for President Trump's tariffs on Canada to the test by forcing a vote to nullify the emergency declaration behind the tariffs. The resolution, proposed by Democratic Sen. Tim Kaine, aims to end the tariffs on Canadian imports imposed as punishment for alleged insufficient efforts to curb illegal drug trafficking. While Republican leaders are focusing on fentanyl trafficking from Canada as a justification for the tariffs, Democrats argue that the tariffs will have far-reaching negative impacts on the economy, raising costs for goods like food products and building supplies. Despite Trump's claims about the scale of fentanyl trafficking from Canada, critics are concerned about the potential economic consequences of escalating trade tensions. The Senate vote will reveal where GOP senators stand on this issue.