25% of $50bn is $12.5bn. When compared to a trade deficit of $400bn (3% of the overall deficit)it is only a small dent. But a good start.
I’m not saying that this is a bad move, but in the end, isn’t it the American consumer that pays that tariff? The result may be that we buy less of the Chinese product, decreasing the trade deficit (this assumes only China makes the product), or we could buy the same amount from China with an increase of domestic inflation, or we could substitute with the product of another foreign manufacturer (e.g. Vietnam) with no effect on the overall trade deficit.
If Trump’s moves result in a more open Chinese market for our goods, great, it will be good for our economy and for domestic jobs. But in the short run, the tariff has been imposed on us.