eat humble pie(Some politicians are so arrogant that they won't eat humble pie even when it's clear they've made a mistake. They just say they were "misinformed".englishclub.cominyazserg)
eat humble pie(to be forced to apologize abjectly or admit one's faults in humiliating circumstances: Some politicians are so arrogant that they won't eat humble pie even when it's clear they've made a mistake. They just say they were "misinformed".)