Editor’s note: Welcome to a special edition of Double Take, a regular conversation from opinion writers Melinda Henneberger and David Mastio tackling news with differing perspectives.

DAVID: Who could have imagined that a truth-challenged, philandering grifter and a drug-addled billionaire wannabe Mars colonist would find it difficult to get along while sharing the presidential limelight?

It is hard to see where Donald Trump and Elon Musk ever aligned much on anything. One wants to build a base on the moon while the other wants to sell Luna to the Saudis. One builds electric cars while the other wants to send them to the landfill. One sold out to China and the other is still trying to sell out to China.

More seriously, I think Musk came to Washington genuinely thinking that he could ch

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