Sen. Ron Wyden (D-OR) is expected to become the next chairman of the Senate Finance Committee if Sen. Max Baucus is confirmed as ambassador to China. Although Sen. John D. Rockefeller IV (D-WV) is next in line in seniority to chair the Committee, he is also retiring at the end of 2014 and prefers to continue to serve as Chairman of the Senate Commerce, Science, and Transportation Committee.