BALDWIN: The political and economic crisis gripping Venezuela has prompted so many countries to offer the South American nation humanitarian aid but the government of Nicolas Maduro has put a stop to that today. He blocked this bridge connecting Venezuela to Columbia just as aid, called for by opposition leader, Juan Guaido, was due to arrive. Guaido has declared himself Venezuela's acting president and he's locked in this power struggle with Maduro. Senior International Correspondent, Sam Kiley, is live in Venezuela. And, Sam, just talk more about the situation on the bridge, this struggle between these two men in the midst of this humanitarian crisis.</s>SAM KILEY, CNN SENIOR INTERNATIONAL CORRESPONDENT: Yes, I think that the humanitarian crisis is absolutely central to the politics here, not just, Brooke, the obvious implications that people here or, in many cases, on the brink of starvation. But also because the opposition under Mr. Guaido is saying that over the next week or so they intend to stockpile aid with the help of the international community at these border crossings, presenting the military with a dilemma. The indication at the moment is that the military will respond by blocking any effort to import humanitarian aid. Once it's really there, the hope of the opposition is, Brooke, that they will flip sides, that they will see that the need the country faces trumps effectively the power that they feel Mr. Maduro may still have over them. It is that power struggle that also has indications for Mr. Guaido's own family, for example. Earlier on today, I spoke to his wife, Fabiana.</s>FABIANA ROSALAS GUAIDO, WIFE SELF-APPOINTED PRESIDENT OF VENEZUALA JUAN GUAIDO (through translation): I think that fear is free. As a human being, we have moments of weakness.
" Maduro Blocks Bridge, Stops Shipments of Aid to Venezuela.