Gov. Jan Brewer is urging a judge to throw out one of the three remaining challenges to Arizona's immigration law.
She argues the state's attempt at trying to fix its border woes isn't trumped by federal law.
Her attorneys say in a filing Friday that the group that filed the lawsuit in question was offering speculation about the law's implications.
The lawsuit by the League of United Latin American Citizens alleges that Arizona's law should be invalidated because the state can't enact statutes to control the flow of immigrants.
A judge has already put the law's most controversial elements on hold.
But LULAC's lawsuit seeks to invalidate other sections that took effect, such as a ban on blocking traffic when people seek or offer day-labor services on streets.
(Copyright 2011 by The Associated Press. All Rights Reserved.)