Anthony Scaramucci has long been one of President Trump’s biggest cheerleaders on Wall Street.

Now he may finally get a position in the Trump White House, as communications director.

Little in Mr. Scaramucci’s background directly relates to communications: He is a former Goldman Sachs executive who went on to create SkyBridge, a fund of hedge funds that holds stakes in investment giants like Elliott Management and Third Point.

But his expected appointment, reported earlier by Axios, would make sense in other, perhaps more Trumpian ways:

• He has a direct line to the president.

• He’s close to Mr. Trump’s eldest son, Donald Trump Jr., and is respected by Ivanka Trump and Jared Kushner.

• He was a major fund-raiser for the Trump campaign.

• He has been a staunch defender of Mr. Trump on the president’s preferred medium, Twitter.