By MICHELLE PRICE

Associated Press

PHOENIX -- Hundreds of people supporting Arizona's new law cracking down on illegal immigration rallied near the state Capitol on Saturday afternoon as temperatures reached 105 degrees.

Hundreds of motorcycle riders kicked off the downtown Phoenix rally by riding in a procession around the Capitol. Supporters waved American flags and some carried signs that read "What part of illegal don't they understand?"

The rally's turnout fell far short of the march organized by opponents of the law last weekend, when an estimated 20,000 people gathered.

Demonstrators on Saturday sweated in temperatures predicted to reach as high as 107 degrees. Some shaded themselves with umbrellas and clamored to buy cold water and ice cream from vendors.

"For them to come here when it's over 100 degrees and stand in the heat -- it's awesome," said 32-year-old Stephanie Colbert of Glendale.

Colbert and her mother, 53-year-old Pattie Sheahan of Phoenix, said they strongly support the new law, which requires police conducting traffic stops or questioning people about possible legal violations to ask about their immigration status if there is "reasonable suspicion" they're in the country illegally. Reasonable suspicion is not defined.

"Everybody needs to obey the same laws," Sheahan said. "If you want to come here, there's ways to do it. Do it the right way."

The law, which goes into effect July 29 unless blocked by a court, will also make it a state crime to be in the country illegally or to impede traffic while hiring day laborers, regardless of the worker's immigration status. It would become a crime for illegal immigrants to solicit work.

Critics have said the law will invite racial profiling, while supporters have said it will help fight illegal immigration.