Former prime minister David Cameron said he is unconvinced that Boris Johnson can win a general election if there is a Brexit delay beyond October 31st. https://www.theneweuropean.co.uk/top-stories/david-cameron-on-general-election-1-6311035
No 10 refuses to rule out election shortly after 31 October Brexit https://www.theguardian.com/politics/2019/aug/08/no-10-refuses-to-rule-out-election-shortly-after-31-october-brexit?CMP=twt_gu&utm_medium=&utm_source=Twitter#Echobox=1565276525