It's probably worth explaining something to our American and European friends who are reading this and getting a taste of UK politics (by the way, welcome! Great to see so many getting involved

).
The position of Home Secretary is the hardest position in UK politics. You have a very wide range of responsibilities to take care of, from domestic security, to immigration, to liaising with emergency service unions.
The Home Secretary basically takes responsibility, in a way, for everything that isn't related to the economy or foreign policy. Sounds good?
Not really. Basically if there is a terror attack, mass strikes, power cuts, too much immigration, deaths in custody, police corruption, the Home Secretary gets blamed, takes the fall and resigns.
The position of Home Secretary has an average lifespan of about 22 minutes. It is incredibly difficult.
At a time of economic uncertainty, with ISIS growing in stature across Europe and with the world changing very quickly, she has remained in her post for 6 years, the longest term in the job for over 100 years.
She is also not as propped up by vested interests as other candidates.
In politics, she is well known as not really being a schmoozer, more a getting on with it type of thing, and she has taken on some very powerful organisations and won, for example the US government on the McKinnon case and the police unions on racism/Hillsborough.
Here is a speech she gave to the police federation.
Please note, this is a room full of police officers (institutionally racist) that she is saying it to. This takes some fucking cajones.
https://www.youtube.com/watch?v=BmPNwf03qV0
She is the right woman for the job.