Rich Lowry: A triumph at Mount Rushmore

If nothing else, President Donald Trump’s July Fourth speech at Mount Rushmore clarified the battle lines of our culture war.The New York Times called the speech “dark and divisive,” while an Associated Press headline declared, “Trump pushes racial division.” A Washington Post story said the speech “crystallized” the president’s “unyielding push to preserve Confederate symbols and the legacy of white domination.”Democratic Sen. Tammy Du