Voters cast ballots in several states as California governor primary goes down to the wire – live

California voters must decide top two candidates to advance in governor’s race; Iowa, Montana, New Jersey, South Dakota and New Mexico also hold primariesSign up for the Breaking News US emailThe Egyptians had their pyramids. The Anglo-Saxons had their barrows. And the Americans have their presidential libraries – the chief difference being that the leaders the US venerates are usually still alive at the opening.Lacking a royal family or a state religion, the US presidency has swelled to fill the void, transforming over the decades into a national personality cult, complete with its own secular temples to these powerful men.