Simplify the following text for a Grade 8 native English-speaking person.
Original: With Chamberlain remaining leader of the Conservative Party , and with many MPs still supporting him and distrusting the new Prime Minister , Churchill refrained from any purge of Chamberlain loyalists . Churchill wished Chamberlain to return to the Exchequer , which he declined , convinced that accepting would lead to difficulties with the Labor Party .
Simplified: Churchill became the prime minister , but Chamberlain stayed in the government .