The Senate is working on a long-term highway spending bill that taps billions of dollars from the Thrift Savings Plan to help pay for it. House budget writers say the G-fund is just too good of a deal and they want to base the fund's interest rate on a three month average instead of the current four-year average. Kim Weaver of the Federal Retirement Thrift Investment Board says that would make the G-fund virtually worthless for TSP participants. Jessica Klement is legislative director of the National Active and Retired Federal Employees Association. She tells In Depth with Francis Rose that NARFE wants Congress to come up with another solution.