Arizona in brief: McCain defends Mueller, says ‘critical’ that he completes probe
In this Nov. 13, 2017 photo, U.S. Sen. John McCain, R-Ariz., arrives on Capitol Hill in Washington. On Twitter Sunday, McCain said it is "critical" that Robert Mueller be allowed to complete a thorough investigation into Russia's interference in the 2016 election. (Pablo Martinez Monsivais, AP Photo/File)