https://www.govtrack.us/congress/votes/109-2006/s262

"The Secure Fence Act of 2006, which called for construction of 700 miles of fencing and enhanced surveillance technology, such as unmanned drones, ground-based sensors, satellites, radar coverage and cameras. Sen. Chuck Schumer and then-Sens. Barack Obama and Hillary Clinton were among a bipartisan majority that voted in favor of the legislation, and it was signed into law by President George W. Bush."

Also Biden voted for it incase you don't want to check the link