Erica Stanford and Christopher Bishop are thought to be in the mix as potential leadership contenders. (Image: NZME)Prime Minister Christopher Luxon has arrived in Wellington to settle speculation about his leadership, although no apparent contender to oust him has publicly declared.After another rash of reports about leadership talk within the National Party emerged on Tuesday, Luxon publicly called an urgent in-person caucus meeting at 9.30am on Wednesday in Wellington to quickly “resolve the issue”. “It is clear from various media reports and conversations there is increased speculation about my leadership,” he said in a socia...