By Alessia Passafiume THE CANADIAN PRESS OTTAWA- A Conservative MP says he’ll apologize after facing demands that he retract comments he made last week about First Nations burning down water treatment plants because they’re frustrated with the Liberals. The office of Saskatchewan MP Kevin Waugh said Monday he has offered to meet with the chief of Piapot First Nation, along with elders, and tour the community. Chief Mark Fox issued a statement on the weekend saying they rejected Waugh’s comments as “grossly disrespectful,” calling for a formal apology and retraction of his “baseless claims.” Waugh made the comments during debate on a First Nations water bill last week, leading to swift pushback from First Nations and the minister of Indigenous services. “In my home province of Saskatchewan, I have seen…