President-elect Donald Trump has doubled down on his support for eliminating or extending the debt ceiling, as Congress tries to avert a government shutdown. Taking to social media, Trump urged lawmakers to raise the debt ceiling by at least four fiscal years. “Congress must get rid of, or extend out to, perhaps, 2029, the ridiculous Debt Ceiling,” Trump wrote in a Dec. 20 post on social media platform Truth Social. “Without this, we should never make a deal. “Remember, the pressure is on whoever is President.” Congress will have until 11:59 p.m. ET on Dec. 20 to avoid a government shutdown. Trump said that if this happened, it would be better to do so under President Joe Biden….