WSJ limits what you can read, without a subscription.
Here’s an excerpt of the Cruz/Ryan op-ed, that I read on another site...
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Ryan and Cruz argue the current version of fast track address those concerns.
[B]efore anything becomes law, Congress gets the final say. The Constitution vests all legislative power in Congress. So TPA makes it clear that Congressand only Congresscan change U.S. law. If the administration meets all the requirements, Congress will give the agreement an up-or-down vote. But if the administration fails, Congress can hit the brakes, cancel the vote and stop the agreement.
Trade-promotion authority will hold the administration accountable both to Congress and to the American people. Under TPA, any member of Congress will be able to read the negotiating text. Any member will be able to get a briefing from the U.S. trade representative’s office on the status of the negotiationsat any time. Any member will get to be a part of negotiating rounds. And most important, TPA will require the administration to post the full text of the agreement at least 60 days before completing the deal, so the American people can read it themselves.
Critics counter that Congress already has the power to reject deals and all Fast Track does is strip lawmakers of the ability to change the deal before passage.