article 233 of the constitution of venezuela says that there are situations when the president of the national assembly can take the job of president of venezuela, if there is no other president. lots of people thought that maduro had not been elected in a way that paid attention to other rules in the constitution, and so guaidó could become the president. guaidó agreed on 10 january 2019 and said that he would try to become president. the national assembly asked for people to protest on 23 january. this is an important day in venezuela, because it is on this day that they got rid of an old president who was a dictator. lots of people all over the world protested on the day. guaidó said that he was president. maduro was not happy about this, blaming it on the united states (u.s.). maduro said he would not deal with the u.s. the u.s., canada, and several latin american countries gave their support to guaidó to be interim president on the same day; russia, china, iran, syria, cuba and turkey supported maduro. on 29 january, the tsj began investigating guaidó, stopping him from having his money or leaving the country.