MEXICO CITY—President
Andrés Manuel López Obrador’s
party, along with two smaller allied parties, won a majority in the country’s lower house in midterm elections on Sunday but fell well short of a two-thirds majority needed to carry out his economic nationalist agenda.
The president’s National Regeneration Movement, or Morena, and its two allied parties won between 265 and 292 seats in the 500-seat lower house, with 85% of votes counted by the country’s election agency.
In failing to clinch a supermajority in the lower house, the president’s party will have a far harder time seeking to overhaul Mexico’s Constitution, political analysts said. The leftist leader has said he would seek to change the constitution to boost government control over key sectors of the economy, including the energy sector.
Both sides could claim some victory from Sunday’s outcome. The president’s party, which was created in 2014, is still…