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Mutual Fund and ETF data provided by <a href="https://lipperalpha.refinitiv.com/" data-omtr-intcmp="topnav_more_refinitive_info">Refinitiv Lipper</a>. <br>FOX Business' Cheryl Casone reports on the meetings as 'Shark Tank' star Kevin O'Leary proposes 'erasing' the U.S.-Canada border and Prime Minister Justin Trudeau faces calls to resign.<br>President-elect Donald Trump is threatening tariffs against a bloc of countries when he assumes office as part of his anticipated effort to reinforce <a href="https://www.foxnews.com/category/us/energy" target="_blank" rel="noopener">oil and gas</a> production in the U.S.<br>Trump, in a Truth Social post, said that he told the European Union that if it doesn't begin to import more U.S. oil and gas, it will be faced with tariffs under his upcoming presidency.<br>"I told the European Union that they must make up their tremendous deficit with the United States by the large scale purchase of our oil and gas," Trump wrote. "Otherwise, it is TARIFFS all the way!!!"<br>Throughout his presidential campaign, Trump vowed to restore energy dominance by bolstering the production of American-made oil and natural gas. Specifically, Trump has revealed that he plans to expand fracking and lift <a href="https://www.foxnews.com/politics/trump-planning-bidens-lng-oil-drilling-during-office-report" target="_blank" rel="noopener">President Joe Biden's pause</a> on new liquefied natural gas (LNG) export permits. <br><a href="https://www.foxnews.com/politics/trump-suggests-canada-become-51st-state-after-trudeau-said-tariff-would-kill-economy-sources" target="_blank" rel="noopener"><strong><u>TRUMP SUGGESTS CANADA BECOME 51ST STATE AFTER TRUDEAU SAID TARIFF WOULD KILL ECONOMY: SOURCES</u></strong></a><br><span>President-elect Donald Trump looks on during Turning Point USA's AmericaFest at the Phoenix Convention Center on Dec. 22, 2024 in Phoenix, Arizona. </span> <span>(Rebecca Noble/Getty Images)</span><br>Trump's latest tariff threat comes amid a number of warnings against several countries, including China, Mexico, and Canada, if they don't act to secure the border and stop drug trafficking.<br><a href="https://www.foxnews.com/politics/majority-americans-optimistic-about-trump-agenda-poll-finds-despite-tariff-concern" target="_blank" rel="noopener"><strong><u>MAJORITY OF AMERICANS OPTIMISTIC ABOUT TRUMP AGENDA, POLL FINDS, DESPITE TARIFF CONCERN</u></strong></a><br>Trump said he would impose 25% tariffs on all Canadian and Mexican exports, unless the countries work to stop the flow of <a href="https://www.foxnews.com/category/us/immigration" target="_blank" rel="noopener"><u>illegal immigration</u></a> and illicit drugs coming into the U.S.<br>After Trump's proposed tariff against Canada, Ontario Premier Doug Ford threatened to <a href="https://www.foxnews.com/politics/canadian-premier-threatens-cut-off-energy-imports-u-s-trump-imposes-tariff-country" target="_blank" rel="noopener">cut off energy</a> and critical mineral exports to the U.S. if the incoming president implements such a tariff on all Canadian products. However, Trump was unfazed by the threat, saying, "That's okay if he does that."<br><span>Canadian Prime Minister Justin Trudeau attends a fireside chat with the Halifax Chamber of Commerce in Halifax on Monday, Dec. 9, 2024.</span> <span>(Riley Smith/The Canadian Press)</span><br>Trump has reportedly engaged in "very productive" conversations with Canadian Prime Minister Justin Trudeau since threatening a new tax.<br>The PM traveled to Mar-a-Lago to meet with the incoming president, where <a href="https://www.foxnews.com/category/person/justin-trudeau" target="_blank" rel="noopener"><u>Trudeau reportedly told Trump</u></a> he couldn't levy the tariff, because it would kill the Canadian economy completely, Fox News previously reported.<br><a href="https://www.foxnews.com/apps-products?pid=AppArticleLink"><strong>CLICK HERE TO GET THE FOX NEWS APP</strong></a><br>Trump then suggested to Trudeau that Canada become the 51st state, which, according to sources, reportedly caused the prime minister and others to laugh nervously.<br><i>Fox News' Bret Baier and Greg Wehner contributed to this report.</i><br>Aubrie Spady is a Writer for Fox News Digital.<br>Get the latest updates from the 2024 campaign trail, exclusive interviews and more Fox News politics content.<br>By entering your email and clicking the Subscribe button, you agree to the Fox News <a href="https://www.foxnews.com/privacy-policy">Privacy Policy</a> and <a href="https://www.foxnews.com/terms-of-use">Terms of Use</a>, and agree to receive content and promotional communications from Fox News. 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