SEOUL (Reuters) -South Korea's political crisis has ignited bipartisan calls for constitutional amendments to reshape the power of the president, an issue hotly debated ahead of the June 3 snap election. The election was called after former President Yoon Suk Yeol was impeached and removed from office over his shock martial law decree in December, and contenders from the major parties have vowed to pursue constitutional reforms. "Chances to succeed in a constitutional amendment are higher than ever," said Chae Jin-won, a professor at Kyunghee University's Institute of Public Governance.