Tā cóng zàicháo dào zàiyě, dìwèi fāshēng le jùdà biànhuà.
Going from in office to out of office, his status changed dramatically.
Tips
history
Comes from the imperial pair 在朝 / 在野 - "at court" vs. "in the wilds." 朝 was the imperial court (those serving in government); 野 was the countryside (those without office). Modern usage maps cleanly onto "in government" vs. "in opposition."
usage
在野党 = opposition party; 执政党 = ruling party. The pair shows up constantly in news coverage of multi-party democracies (Japan, Taiwan, UK, etc.).