O'Reilly has supported stricter border controls, including placement of the National Guard troops on the US-Mexican border and has criticized President George W. Bush for not allocating enough resources to make border security effective. He also criticized Ronald Reagan's act of amnesty, claiming that it made the illegal immigration problem worse. O'Reilly makes a distinction between criminal illegal immigrants and non-criminals by saying that criminal illegal immigrants should be deported immediately. O'Reilly criticizes the lack of cooperation between local sanctuary cities and the INS.