The Senate on Tuesday voted to advance President Obama’s trade agenda, approving a measure to end debate on fast-track authority. The 60-37 motion sets up a vote on final passage on Wednesday. If the Senate approves fast-track or trade promotion authority (TPA), it would then be sent to Obama’s desk to become law. Fast-track authority would allow Obama to send trade deals to Congress for up-or-down votes. The White House wants the authority to conclude negotiations on a sweeping trans-Pacific trade deal. Thirteen Democrats backed fast-track in Tuesday’s vote, handing Senate Majority Leader Mitch McConnell (R-Ky.) a major legislative victory....