Republicans are warning President Donald Trump that a trade war with China would deal an economic blow to politically important areas of the country that will cost the party in November’s congressional elections.

President Donald Trump and Republican leaders plan to release a tax framework this week that would dramatically cut taxes for corporations and the wealthy, provide a measure of middle-class tax relief and punish some households in Democratic-leaning states like New York and New Jersey.

Donald Trump on Aug. 2 proposed a plan to rebuild U.S. infrastructure that costs “at least double” the amount that Hillary Clinton has floated, in what would amount to a massive new government program.