Dr. Oz, nominated by Trump to lead the agency managing medicaid, refused to oppose potential cuts to the program, raising concerns about its future under Republican leadership.

Trump's pick to lead the Centers for Medicare & medicaid Services

Government-run health insurance program under scrutiny for potential cuts

President who nominated Dr. Oz for the CMS administrator position

Senator questioning Oz during the confirmation hearing

The agency Dr. Oz is nominated to lead, overseeing medicaid and Medicare