 Paul believes that illegal immigrants should not be given an "unfair advantage" under law.He has advocated for a "coherent immigration policy", and has spoken strongly against amnesty for illegal aliens because he believes it undermines the rule of law, grants pardons to lawbreakers, and subsidizes more illegal immigration.Paul voted for the Secure Fence Act of 2006, authorizing an additional 700 miles (1100 kilometers) of double-layered fencing between the U.S. and Mexico mainly because he wanted enforcement of the law and opposed amnesty, not because he supported the construction of a border fence.