"Lake Ontario Now and Always" are the words written on a new sign unveiled by Ontario's premier in a rebuke to US President Donald Trump.Earlier this week, Trump signed an executive order changing the name of Lake Ontario to "Lake America".In response to Trump's actions, Ontario's premier Doug Ford posted a video on Instagram on Sunday standing in front of a brand new Lake Ontario sign.He said the lake was a "crown jewel" of the country and the sign was a reminder to Trump that it would "forever" be named Lake Ontario."You may have heard that President Trump is trying to rename this lake," Ford said in the video."All because he doesn't like Ontario and Canada standing up for ourselves."But just in case President Trump or anyone else forgets, we've set up this sign to remind them it's Lake Ontario now and forever."Lake Ontario is one of the five Great Lakes of North America and borders both the Canadian province of Ontario and the US state of New York.Following Trump's threat, Reuters reported that Canada's minister responsible for US trade, Dominic LeBlanc, said the federal government had decided they would not respond to social media posts made by the US administration.