The Clinton Foundation's acting chief executive admitted on Sunday that the charity had made mistakes on how it listed government donors on its tax returns and said it was working to make sure it does not happen in the future.
The U.S. Supreme Court is set to hear arguments this week on whether a drug used in Oklahoma's lethal injection mix should be banned in a case that comes as a shortage of execution chemicals has sent some states scrambling for alternatives.
Ash from the Chilean volcano Calbuco, which erupted without warning this week, reached as far as southern Brazil on Saturday and prompted some airlines to cancel flights to the capitals of Chile, Argentina and Uruguay.