In testimony to the Senate Finance Committee, Mr. Kennedy seemed to confuse the two government programs that cover more than 150 million Americans.

Robert F. Kennedy Jr. struggled to answer questions from Sen. Bill Cassidy (R., La.,) about Medicare and Medicaid. When asked about how care for people who are eligible for both federal health programs could be integrated,

Robert F. Kennedy Jr. incorrectly said that Medicaid was fully funded by the federal government and that Medicare is a fee-for-service program during a hearing in front of the Senate Finance Committee on Wednesday.