Rep. Raúl Grijalva called Hillary Clinton ally Rep. Luis Gutiérrez's (D-Ill.) attacks on Sanders's immigration record "disingenuous."

"To categorize (Sanders) as anti-immigrant, voting with Republicans – which Gutiérrez has done – is not true at all," the Arizona Democrat tells The Hill's Molly K. Hooper.

Grijalva challenges Gutiérrez, a Clinton surrogate, to debate "specifics" on both contenders' immigration reform records, ticking off a list of Clinton's policy stances that could turn off Latino voters. To hear Grijalva in his own words, take a look at the video above.