A month after Secretary of State Marco Rubio announced plans to dismantle the U.S. Agency for International Development (USAID), a San Diego-based former employee is speaking out.

US Secretary of State Marco Rubio warned that the United States would give up on mediation unless Russia and Ukraine put forward "concrete proposals".

Secretary of State Marco Rubio warned on Tuesday that the United States would give up on mediation unless Russia and Ukraine put forward ...

U.S. Secretary of State warns Russia and Ukraine to propose concrete solutions or risk U.S. mediation withdrawal.