It was worse in 1931
Colin Kidd: Clement Attlee, 17 November 2016
“... becoming postmaster-general in March 1931. What transformed Attlee’s career was the financial crisis of 1931 and the estrangement of the fiscally orthodox MacDonald and his chancellor, Philip Snowden, from the rest of the party. Significantly, while other Labour ministers were wooed by MacDonald, he made no attempt to win over Attlee. In the 1931 general ... ”