The key questions surrounding Sir Michael Fallon's controversial resignation

Sir Michael Fallon's resignation as Defence Secretary raises some important questions - none more so than for the Prime Minister, who has lost one of her most trusted allies in the Cabinet.
Michael Fallon has resigned from his position at Secretary of Defence.Michael Fallon has resigned from his position at Secretary of Defence.
Michael Fallon has resigned from his position at Secretary of Defence.

Here we take a look at the possible repercussions as Theresa May seeks a replacement for one of Westminster's most senior players.