From this:

Just nine statues in the Capitol's 100-piece Statuary Hall collection depict minorities, a figure that some lawmakers claim is woefully inadequate.

Concerned about the lack of diversity, the legislators are spearheading efforts to make changes to the Capitol's artwork...

Those quoted as supporting a de facto quota system for statues include Reps. Charlie Rangel, Eleanor Holmes Norton, Jesse Jackson Jr., Joe Baca, and Mike Honda. I'll admit that they have a slight point, even if they won't admit that this is a completely trivial issue and they're engaged in a power play. But, it least it will mean that Baca will have less time to work on opening the borders.