What's next for UK? Boris Johnson quits as PM, but not gone yet

Boris Johnson has resigned as Conservative Party leader after months of ethics scandals and a party revolt. But he remains Britain's prime minister for now while a successor is chosen.

With British politics in turmoil, here's a look at what will happen next:
WHY IS BORIS JOHNSON RESIGNING?
SO IS JOHNSON STILL PRIME MINISTER?
WHO COULD BECOME THE NEXT PRIME MINISTER?
WHILE A NEW LEADER IS BEING CHOSEN, WILL JOHNSON REMAIN PRIME MINISTER?
WHAT'S THE LIKELIHOOD OF JOHNSON LEAVING BEFORE A NEW PARTY LEADER IS PICKED?
Gavin Barwell, who served as chief of staff to Prime Minister Theresa May, said there was a question whether the PM will be able to lead a caretaker government in the meantime -- will enough ministers agree to serve?
WHEN IS BRITAIN'S NEXT NATIONAL ELECTION?