This week, three senior officials will testify after having been heard in camera. Among them, diplomat Bill Taylor had unveiled the existence of a shadow diplomatic channel in Ukraine led by Donald Trump's personal lawyer Rudy Giuliani. He also confirmed the White House's pressure on the Ukrainian president to open an investigation into Democratic candidate Joe Biden.
With these public hearings, the Democrats hope that Americans will be able to get an immediate opinion on the actions of Donald Trump.
For his part, the US president still refuses to collaborate with Congress and calls on Republicans to do just as much
