President Obama said he will nominate Ann Begeman, the Republican staff director at the Senate Commerce, Science, and Transportation Committee, to be the third member of the Surface Transportation Board (STB), the Journal of Commerce reports.

Begeman will replace Charles D. Nottingham, the former STB chairman who is now the sole Republican board member, according to the publication. He is retiring from the rail regulatory board, and his term ends Dec. 31. Begemen will join Democrats Daniel R. Elliott, who is chairman, and Vice Chairman Francis P. Mulvey.