Trump's new security advisor differs from him on Russia, other key issues

U.S. President Donald Trump looks toward his new National Security Adviser Army Lt. Gen. H.R. McMaster after making the announcement at his Mar-a-Lago estate in Palm Beach, Florida U.S. February 20, 2017. REUTERS/Kevin Lamarque

WASHINGTON (Reuters) - U.S. President Donald Trump has shown little patience for dissent, but that trait is likely to be tested by his new national security adviser, Army Lieutenant General H.R. McMaster.

McMaster is joining the White House staff with views on Russia, counterterrorism, strengthening the military and other major security issues that diverge not only from those of the Trump loyalists, but also from those the president himself has expressed.