The 2018 elections in Bhutan were won by the MDP (Druk Nyamrup Tshogpa) party. The election took place on October 18, 2018, and the MDP party won 30 out of 47 seats in the National Assembly, which is the lower house of the Bhutanese parliament.

Factors that led to MDP's victory:

1. Anti-incumbency: The ruling party, the People's Democratic Party (PDP), had been in power for the previous five years, and there was a growing sense of anti-incumbency among the people.

2. Campaign strategy: The MDP ran a strong campaign, promising to create jobs, improve healthcare and education, and reduce corruption. They also focused on engaging with young voters and using social media to reach a wider audience.

3. Leadership: The MDP was led by Dr. Lotay Tshering, a popular doctor who had previously served as the health minister. His personal popularity and clean image helped the party gain momentum.

4. Voter turnout: The voter turnout was high, with around 71% of eligible voters casting their ballots. This suggests that there was a high level of interest and engagement in the election, which may have worked in MDP's favor.

Overall, the MDP's victory in the 2018 elections marked a significant shift in Bhutanese politics, with the party promising to usher in a new era of development and progress for the country.