1st - By posting Newsmax, you unwittingly proved the WAPO check true. The Newsmax sites sources where the economy hasn't been this good since...1999 and the 50s and 60s. So in fact, it isn't the best economy ever. He hasn't created the most jobs. It wasn't the lowest unemployment rate. It isn't the best stock market ever. Did good things happen? Absolutely - but why lie about the truth and the scope? Instead he gets grandiose (ok, pay yourself on the back) then takes it to delusion land.
2nd - the WAPO cites all verifiable facts. Facts taken from Trump's own economic reports. Just look it up. News stories and reports aren't academic papers that need to have APA cited sources, especially when it is common knowledge and easily verifiable through public record.
3rd - if Obama's first 2 years in office (financial collapse under Bush) are going to be his only frame of reference, as Newsmax cites, to his 8 years in office, then Trump's last year will forever overshadow his 4. We lost the most GDP since 1946, unemployment shrank the most since 2009, and minority unemployment is worse than when Trump took office
4th - The idea that because you didn't experience it means it isn't true? I've never been to space, but I'm certain the earth is round. I wasn't around during World War II, but I know Hitler was a terrible human.
I believe it is the best economy you have experienced, however. All the rest is also true and Trump has lied and also lost the economy.