Gabby Gifford.
But your point is? Not only congressman, but immigrants were abused by jerks who claimed Trump as inspiration. The issue here is that a major candidate for the presidency, who got elected, made bigoted comments and false claims about various groups: refugees, blacks, Mexicans, immigrants, Muslims, and women. That type of stuff from a leader with some responsibility, coming from the left right or center inspires jerks to commit violence, and it has in Trump's case.
As to Gabby Gifford, she was shot along with others by a guy who espoused far right views, tho to be fair, he was crazy and had liberal views early on.