house devils in four legislative business. on the agenda, a bill that provides federal rebates for purchases of fuel-efficient vehicles. we spoke yesterday with the capital and reporter for the view of today's debate. >> joining us on the telephone is just aoshj. cash for clunkers, how would it work? >> it would offer americans up to $4.5000 to trade in a gas guzzler for new vehicle. there is a discrepancy on the threshold. the house proposal, which came out of the energy and commerce committee, was issued, the threshold for older vehicles would be 15 miles a gallon. to qualify for the credit, i think it is " 0.5 mile an hour for cars. one or two miles a gallon for trucks, depending on the size. >> the house is set to consider a bill on tuesday. will it to get two-thirds support required for passage under the special procedures being used to consider it? >> it appears headed that way. it has bipartisan support that's pretty wide. the only concern is there is some discussion that house leadership may attempt to insert it into a