Washington, D.C ? In a rare moment of bipartisanship Tuesday, the House approved $600 million to pay for more unmanned surveillance drones and about 1,500 more agents along the troubled Mexican border.

Getting tougher on border security is one of the few issues that both parties agree on in this highly charged election season. But lawmakers remain deeply divided over a more comprehensive approach to the illegal immigration problem, and it’s unclear if Congress will go beyond border-tightening efforts.

The House passed the bill by voice vote after brief debate and the Senate passed an identical bill last week. But senators must act again, for technical reasons, before sending the bill to President Barack Obama for his signature.