NEW YORK — Former President Donald Trump will speak at the Libertarian National Convention in Washington, D.C. later this month as he tries to woo voters beyond the Republican base and avoid losing support to independent candidate Robert F. Kennedy Jr. “Libertarians are some of the most independent and thoughtful thinkers in our Country, and I am honored to join them in Washington, DC, later this month,” Trump said in a statement issued Wednesday. “We must all work together to help advance