Democrats and Republicans are accusing one another of "lying" about what a House Republican budget resolution means for Medicaid, and both sides have made misleading or speculative comments. There's little doubt the health care program would face cuts under the plan -- and it would have to if Medicare cuts are off limits.

Democrats are rerunning the playbook that won them control of Congress in 2018, focusing on the cost of the G.O.P.’s tax cut plan for ordinary Americans, particularly when it comes to health care.