It's Purely Mathematical. . .

A Select Few of the Scoundrels and Misfits

In a purely mathematical sense, something that is "equal to the sum of its parts" means that if you add up the values of all its individual components, the total will exactly match the value of the whole thing; essentially, the whole is simply the sum of its parts, with no additional value or effect from how they are combined. 

In other words, if you consider a handbasket full of MAGA folks stuffed inside and heading to hell, they would equal the sum of intelligence of the entire U.S. House and U.S. Senate. 

Don't blame me for the facts. . . I'm just interpreting the truth in a purely mathematical sense. One day, the truth is going to land like an anvil on the heads of each one of this nitwits when they see their soiled reputation in the history books of shame. They will all remember their good ol' days of MAGA, fraudulent self-importance, skullduggery and outright corruption. A regular Frat & Sorority House of Good Times and Nation Destruction!

. . . and they can all tell their children and grandchildren about their plans that destroyed their country!