Opposition 'determined' that aid enter, 'usurpation' end: Guaido Opposition leader Juan Guaido, recognized as interim president of Venezuela by some 50 countries, says their movement is "deeply determined" that the US humanitarian aid piling up in Colombia, near the Venezuela border, will enter the country, and that the "usurpation" of the goverment come to an end, speaking at a rally to inaugurate a volunteer movement that would help distribute the blocked aid. SOUNDBITE