South Korean president Yoon Suk Yeol is facing a possible removal from office as his impeachment trial began over his controversial martial law decree last month that plunged the country into political chaos.

It isn’t a Donald Trump rally, however, but a protest by conservative supporters of impeached South Korean President Yoon Suk Yeol, who could become the East Asian democracy’s first sitting president to be arrested after he plunged it into political instability last month with his botched attempt to declare martial law.