He says it’s the number of points the Dow Jones Industrial Average would be up had the Federal Reserve not raised interest rates. It’s the number of people attending his rallies — or the number forced to wait outside because they couldn’t get in.

It’s also the number of jobs a company plans to create, the headcount of captured Islamic State fighters, the number of migrants in a caravan headed to the U.S., and the Allied casualty count on D-Day.

Sometimes the number is accurate. Other times, it’s a wild guess — or wildly wrong…

For instance, he said in January that Immigration and Customs Enforcement officers last year removed 10,000 known or suspected gang members whom he described as “horrible people.” (The agency actually reported arresting that number but removing 5,872 known or suspected gang members in fiscal year 2018.)