The challenges for Venezuelan President Nicolas Maduro are growing by the day. On Jan. 23, U.S. President Donald Trump, seven Latin American states and Canada recognized Juan Guaido, the head of the opposition-controlled Venezuelan congress, as the country's legitimate president. Guaido declared himself the legitimate president earlier in the month, justifying his claim on the grounds that Maduro won his second term in a fraudulent election. Upping the stakes, Guaido has also offered an amnesty to any members of the military -- whose loyalty is key to the government retaining power -- who rebel against Maduro. ...