Because Congress doesn't get an up or down vote. You're funny!
Then I suppose you can show us some settled litigation proving Fast Track is unconstitutional. It's been 32 years since the legislation was passed. Certainly, during that length of time, someone or some organization has challenged this in court and proven it to be illegal.
So she finally hit the trifecta: 1. she has quoted Public Citizen directly, 2. she has quoted the testimony of Public Citizen officials directly, and 3. she has quoted a glowing account of Public Citizen's work directly. An impressive achievement over a span of just a few years, especially on a conservative website.