In a speech at CPAC, Trump questioned the patriotism of some members of Congress. It appears that Trump reserved his criticism for immigrant members of Congress, specifically Rep. Ilhan Omar (D-MN). The crowd at CPAC yelled her name when Trump made this statement.

via Aaron Rupar:

"We have people in Congress right now that hate our country... When I see some of the statements being made, it's very very sad. And find out -- how did they do in their country? Did they do well?... Some will say it's terrible he brought that up, but I don't mind."