He says this as Texas will throw at least six Democrats in the US House out of their jobs this year, thanks to the redistricting effort last summer.
Richardson's statement is almost certainly true. Currently, there is no Democrat in Texas who is the party leader or even a rising young star. There are 29 statewide political officeholders in Texas, and all 29 positions are held by Republicans.
If the Democrats ever elect one, the percentage increase is infinite. So, technically, Bill is right.
A very good reason for redistricting last summer. We eliminate their farm team.