In the United States, the Senate is expected to hold a key procedural vote today on a measure to give President Obama fast-track authority to negotiate the Trans-Pacific Partnership, or TPP. The 12-nation trade pact would encompass 40 percent of the global economy and is being negotiated in secret. Critics say the deal would hurt workers, undermine regulations and expand corporate power. Senate lawmakers who support the deal need 60 votes to begin a full debate.