Polls close in South Carolina, where Republicans brace for runoff in race to replace Lindsey Graham – live

Race includes late US senator’s sister, Darline Graham, who was sworn in as interim senator last month; polls also close in Vermont as handful of states hold primariesSign up to the US Breaking News emailPete Hegseth’s appointments to a key Pentagon advisory body include two men with ties to the venture capital fund where Donald Trump Jr is a partner, which has lucrative investments in military and space technology.Defense Policy Board appointee Marc Andreessen’s firm, Andreessen Horowitz, one of Silicon Valley’s largest venture capital firms and known by the name “a16z”, co-invests alongside the Trump partnership 1789 Capital in three