“No one should behave as if they alone can build a government,” Mr. Laschet told reporters Monday. “You become chancellor if you can build a majority.”
It would not be the first time that someone who lost the popular vote became chancellor. In 1969, 1976 and 1980, Willy Brandt and Helmut Schmidt, both center-left chancellors, formed coalition governments having lost the popular vote. But both got upward of 40 percent of the vote and did not face the complex multiparty negotiations now getting underway in Germany.
Several conservatives urged Mr. Laschet to concede on Monday.
“It was a defeat,” said Volker Bouffier, the governor of the state of Hesse, adding that others were now called upon to form a government.
Ellen Demuth, another conservative lawmaker, warned Mr. Laschet that his refusal to concede was hurting his party further. “You have lost,” Ms. Demuth tweeted. “Please recognize that. Avoid further hurting the C.D.U. and resign.”
The state leader of the conservative youth wing was equally adamant. “We need a true renewal,” said Marcus Mündlein and that, he said, could be successful only if Mr. Laschet “bears the consequences of this loss in trust and steps down.”
An opinion poll released after the election showed that more than half of Germans preferred a coalition led by Mr. Scholz, compared to a third who said they wanted Mr. Laschet at the helm. When asked who they preferred as chancellor, 62 percent opted for Mr. Scholz, compared to 16 percent for Mr. Laschet.
Some argued that a Scholz-led government would present his party with an opportunity to revive its declining fortunes.