With Democrats taking control of both the US House of Representatives and the Senate, President Donald Trump faces a new political challenge. Speaking to NDTV from Washington DC, consulting editor Akshob Giridharadas explains how Democrats could exercise legislative oversight, launch investigations and use congressional committees to scrutinise the administration. The Senate could also become a roadblock for Trump's judicial and ambassadorial appointments. However, Trump retains executive powers, making bipartisan negotiations and political checks and balances central to the next phase of his presidency.