By Olivia Rinaldi White House reporter Olivia Rinaldi is a White House reporter at CBS News. She covered President Trump's 2024 presidential campaign and was previously an associate producer for "CBS Evening News with Norah O'Donnell" and a broadcast associate for "Face the Nation." She is based in Washington, D.C. Read Full Bio Updated on: April 24, 2026 / 4:31 PM EDT / CBS News Add CBS News on Google Drug-making giant Johnson & Johnson will officially start marketing four of its medications on the Trump administration's TrumpRx website on Friday, CBS News exclusively learned.  The pharmaceutical company announced in January that it had entered into a voluntary agreement with the Trump administration to lower costs for Americans by providing Medicaid access to affordable prescriptions and marketing its drugs on TrumpRx in exchange for exemption from the president's tariff agenda.  One of the drugs offered on White House's discounted pharmaceutical site is metformin, a popular prescription to…