After a long-awaited summit. Biden calls Chinese president a dictator. US President Joe Biden said he had not changed his view that his Chinese counterpart Xi Jinping is in fact a dictator, following a summit in California. Biden said Wednesday's summit with Xi was "constructive and productive," noting in particular that it led to an agreement on the resumption of high-level military talks. But this positive atmosphere has not overcome the deep differences between the world's two largest economies, especially trade and Taiwan.