Donald Trump has repeatedly criticised the United Nations, calling it ineffective and accusing it of failing to serve US interests. He has argued that the organisation needs major reforms and has questioned continued American funding, saying the US bears an unfair financial burden. Donald Trump has repeatedly criticised the United Nations, calling it ineffective and accusing it of failing to serve US interests. He has argued that the organisation needs major reforms and has questioned continued American funding, saying the US bears an unfair financial burden.