The head of Hispanic media relations at the Republican National Committee, Ruth Guerra, announced her resignation amid reports that she was “uncomfortable working for Mr. Trump.” The announcement comes after a week in which presumptive GOP nominee Donald Trump repeatedly attacked  the ethnic background of a U.S. District Court Judge, and criticized the first Latina governor in U.S. history, Susana Martinez.

Trump has made insulting Hispanics a cornerstone of his presidential bid, including describing Latino immigrants as “rapists,”claiming that the Mexican government was intentionally sending criminals to the US, suggesting that Jeb Bush’s immigration views were shaped by his Mexican born wife, chalking up the beating of a Hispanic man by his supporters as them being “passionate,” and declaring “I love Hispanics” by tweeting out a picture of a taco bowl.

Guerra’s resignation also comes a month after two high ranking African American’s resigned from the RNC. On March 31 NBC News reported that the RNC’s Director of African American outreach was leaving which was preceded by the resignation of the RNC’s Communications Director of Black Media.

The New York Times reports:

The head of Hispanic media relations at the Republican National Committee is resigning this month in what appears to be another indication of the lingering discomfort some party officials have about working to elect Donald J. Trump president.

[…]

Ms. Guerra told colleagues this year that she was uncomfortable working for Mr. Trump, according two R.N.C. aides who requested anonymity to speak candidly about the difficulties surrounding the party’s presumptive standard-bearer.

It is relatively rare for party staff members to leave the national committee in the midst of a presidential campaign unless they are going to work directly for the nominee.