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What Trump’s McCain snub tells us about his character

While signing a bill named after John McCain, it would've cost Donald Trump nothing to be gracious toward the ailing senator. But he just couldn't do it.

Image: President Trump Holds Make America Great Again Rally In Pennsylvania
WILKES BARRE, PA – AUGUST 02: President Donald J. Trump speaks to a large crowd on August 2, 2018 at the Mohegan Sun Arena at Casey Plaza in Wilkes Barre,…Getty Images

Steve Benen is a producer for "The Rachel Maddow Show," the editor of MaddowBlog and an MS NOW political contributor. He's also the bestselling author of "Ministry of Truth: Democracy, Reality, and the Republicans' War on the Recent Past."