[1] While living in Washington D.C., Hinojosa worked as a staff attorney for the Migrant Legal Action Program, Inc.
On August 11, 2003, Hinojosa appeared before the United States Senate Committee on Environment and Public Works in support of Senate Bill 1329, which would provide funds to assist in moving railroads to improve access for commercial traffic which passes through Cameron County to and from the border with Mexico.
[2] After the bill passed, the Cameron County West Rail Relocation Project was initiated providing for the construction of a railroad across the Rio Grande River from Brownsville to Matamoros, Mexico, with approximately $21 million in federal funds provided.
[4] One day after the inauguration of President Barack Obama, Hinojosa attended the Democratic National Committee winter meeting in Washington, DC.
On January 23, 2008, he nominated Virginia Governor Tim Kaine to head the Democratic National Committee.