In electing conservative incumbents governing for years over upstart mavericks who appeal to younger voters, potentially influential swing voters have rejected a modernist movement that conflicts with their conventional beliefs.

D. By electing conservative incumbents with years of government experience instead of upstart mavericks who appeal to younger voters, potentially influential swing voters have rejected a modernist movement that conflicted

E. By electing conservative incumbents with years of government experience instead of upstart mavericks who appeal to younger voters, potentially influential swing voters have rejected a modernist movement that conflicts

Could anyone please let me know why simple present in option E is better than present perfect in option D.

Thanks in Advance.