The House will take another vote on TAA.
The Senate is expected to pass a fast-track trade bill.
A push to pass fast-track trade legislation faces a test vote in the Senate.
Trade and spending fights will top the agenda on Capitol Hill.
The Senate could also take an initial vote on a defense spending bill.
An annual defense policy bill faces a procedural hurdle.
House lawmakers want Iran to release Americans currently being held, and help find any U.S. citizens missing in Iran.
The House will start work on trade legislation.
The White House has threatened to veto the House's defense spending bill.
Senators will debate an annual defense policy bill.