President Donald Trump’s signature tax and spending legislation is providing short-term clarity for Wall Street but fueling concerns about the long-term health of the US economy, investors say.

Passage of Donald Trump’s sweeping tax, health and spending bill was no small feat for Republicans, but selling it to the American people may prove to be tougher, even for a president who built a career on savvy branding.

Washington — A Trump-backed tax holiday on auto loan interest payments could save middle-class Americans several hundred dollars apiece on new U.S.-built vehicle purchases through 2028, according to industry experts.

Low-income Americans, meanwhile, face an estimated $1 trillion in cuts to Medicaid under the new budget bill, including through work requirements and diminished federal support. One recent study estimated that the austerity measures will lead to over 1,000 extra deaths, and almost 100,000 more hospitalizations, every year.

Key provisions in the president’s signature legislation will take effect at different times over several years.

President Trump has been in office for six months, delivering on campaign promises, securing his "big beautiful bill" by his self-imposed deadline and taking decisive action on the world stage.