The Senate tomorrow returns from its Memorial Day recess for floor business. It is scheduled to hold a procedural vote on the Paycheck Fairness Act, a women's pay equity bill intended to highlight political issues before the election. After that, the Senate will likely take up the farm bill, one of the few bipartisan efforts that the Senate or Congress as a whole has crafted this year.The farm bill is likely to be challenged by a number of amendments, as we have previously noted, and could be on the floor for weeks. The goal is final passage by the Independence Day recess (4 July). That would pressure the House to take up the measure after returning from recess. There could be a lot of amendments in the House because the bill is likely to b...