Mayorkas is driven by his own understanding of the immigrant experience. Many in GOP want him gone

Read MoreSupporters of Homeland Security Secretary Alejandro Mayorkas says he brings a prosecutor’s tenacity and a personal understanding of the immigrant experience in America to the job of running the sprawling agencySupporters of Homeland Security Secretary Alejandro Mayorkas says he brings a prosecutor’s tenacity and a personal understanding of the immigrant experience in America to the job of running the sprawling agency