Of those protesting, Michael Cassidy, Jacinta Gonzalez and Stephany Laughlin were arrested.
Gonzalez said because of her last name she was questioned by U.S. Immigration and Customs Enforcement agents after she was processed by MCSO. She said she was transferred to the custody of immigration agents after there was a "hold" placed on her.
MCSO said all three individuals went through an ICE interview, which is standard protocol. They said a hold was placed on Gonzalez for an unknown reason. After MCSO attempted to release the woman from their custody, ICE was notified and investigated.
ICE sent the following statement to ABC15:
"Ms. Gonzalez-Goodman was recently released from U.S. Immigration and Customs Enforcement (ICE) custody after database checks determined she currently holds a valid United States passport. Under current ICE procedures, all foreign-born individuals who are booked into the Maricopa County Jail are interviewed by ICE personnel to determine alienage and removability and whether they would be an enforcement priority for the agency."
Dozens of protesters were clogging Shea Boulevard at two different locations on either side of Fountain Hills.
At the same time, hundreds of cars were flooding into the area for the Donald Trump rally.
"That's the way to make your voice heard, to do something like this," said Brianda Martinez, who supported the protesters.