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

Senators grilled Robert F. Kennedy Jr. on if and how he would reform Medicaid and Medicare during his first confirmation hearing to become the next secretary of Health and Human Services.

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,