President Donald Trump's tax cut and spending bill faces a critical stress test on Wednesday as Republicans in the U.S. House of Representatives try to overcome internal divisions about cuts to the Medicaid health program and tax breaks in high-cost coastal states.

Class conflict has erupted in Trump’s America – within his own Republican Party. The party controls both houses of Congress, as well as the presidency. But their struggle to agree upon tax legislation shows that Republicans in Washington are challenged by the clashing interests of their traditional wealthy constituents and their new working-class base.