This article discusses several aspects of Giuliani's liberal positions
(abortion, gay rights, etc), including his stance in protecting
illegal immigrants:http://www.theconservativevoice.com/article/25292.html

Here is the part in the article concerning Rudy's protection of
illegal immigrants:

When it came to combating illegal immigration, Mr. Giuliani chose to
challenge the federal government instead of to cooperate.

"MAYOR GIULIANI ANNOUNCES CITY HAS FILED SUIT TO CHALLENGE FEDERAL
WELFARE AND IMMIGRATION LAWS," Release #511-96, October 11, 1996:

"Mayor Rudolph W. Giuliani today announced that the New York City
Corporation Counsel has filed a law suit against the federal
government challenging two provisions of the recently enacted Federal
Welfare and Immigration laws. The suit contends that these laws are
unconstitutional on the grounds that they violate the Tenth Amendment
of the United States Constitution by invalidating New York City's
'Executive Order 124.'

"'I believe the anti-immigration movement in America is one of our
most serious public problems,' Mayor Giuliani said. 'And Washington is
only making the problem worse. I am speaking out and filing this
action because I believe that a threat to immigration can be a threat
to the future of our country. Just as they did in years past,
immigrants today revitalize and reinvigorate the culture and economy
of our cities and states.'

"The suit filed today is an action for declaratory and injunctive
relief challenging two federal statutory provisions that encroach on
the power of the City of New York to determine policies to ensure
public health and safety and regulate its workforce. These provisions
prohibit the City from continuing its well-considered policy, embodied
in Executive Order 124 and enacted under former Mayor Edward I. Koch.

"Executive Order 124 bars City employees from disclosing to federal
immigration authorities the immigration status of aliens who come to
their attention, unless required to do so by law, and more
specifically barring the New York City Police Department from
reporting the immigration status of victims of crime.

"The suit contends that the reasons for this policy are evident.
Undocumented aliens who are witnesses to or victims of crime must not
be deterred from coming forward for fear of deportation, nor should
undocumented aliens who are infected with contagious disease be
deterred from seeking treatment, nor should undocumented alien
children be afraid to attend public schools and forfeit their right to
an education. The safety and public health of the entire City are
dependent on all residents, regardless of their immigration status,
cooperating with the government and securing government services to
which they are entitled. The federal statutes at issue prohibit the
City from continuing this particular policy and thus require the City
to allow its officials to provide information on the immigration
status of aliens to the Immigration and Naturalization Service.

"The City's lawsuit also contends that the Federal laws together
prohibit States and local government entities and their officials from
prohibiting such entities and officials from sending information to
the INS regarding the immigration status of an alien in the United
States. It further charges that these provisions run afoul of
principles of federalism and the Tenth Amendment and Guarantee clause
of the United States Constitution because (1) they directly prohibit
States and localities from engaging in the central sovereign process
of passing laws of otherwise determining policy; and (2) they usurp
States' and local governments' administration of core functions of
government, including the provision of police protection and
regulation of their own workforces, in a statute that is not of
general applicability.

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