Stack is also up for re-election in November, and is favored to win in predominantly Democratic Hudson County.
In the past, sources have alleged that Union City got extra state aid and other special treatment because of Stack's relationship with Christie. (See link here.)
Two other Democratic Hudson County mayors - Hoboken Mayor Dawn Zimmer and West New York Mayor Felix Roque - have shown signs of being allied with Christie or working with him in the past, but neither has made an endorsement.
At the rally, Stack said, “Governor Christie has set an example of what it means to be bipartisan for the good of the people." He spoke of Christie's work with Pres. Barack Obama in bringing federal aid to his area for Hurricane Sandy.
Stack also called Christie a friend. "I get more sleep every night knowing I have a governor who cares about the people of New Jersey," he said.
Christie faces Democratic challenger Barbara Buono in November.
Stack's state Senate district includes Union City, Hoboken, Weehawken, and part of Jersey City.