Recount in two Wisconsin counties reinforces Biden’s victory.

Wisconsin’s two largest counties have concluded recounts requested by the Trump campaign, with the results slightly increasing Joseph R. Biden Jr.’s margin of victory and reaffirming his win over President Trump in this month’s election.

Dane County certified its election results on Sunday, and Milwaukee County certified its totals on Friday. The Wisconsin Elections Commission is scheduled to meet on Tuesday.

The conclusion of the recount adds yet another loss in the Trump campaign’s effort to upend Mr. Biden’s win. The president’s team has been dealt a series of losses in court in several key states, including Pennsylvania and Michigan.

As Mr. Trump continued to propagate baseless claims of voter fraud in Wisconsin and across the country, his campaign requested recounts in two heavily Democratic counties. But it had little effect on the final results.

In Milwaukee County, Mr. Biden’s ticket received 317,527 votes. Mr. Trump’s ticket received 134,482, according to county results. Both totals increased slightly compared with an earlier count, and Mr. Biden gained 132 votes.

Dane County, which includes the city of Madison and the flagship campus of the University of Wisconsin, found that 260,094 votes were cast for Mr. Biden, while 78,754 were cast for Mr. Trump. Compared with earlier results, the final tally included 91 fewer ballots for Mr. Biden and 46 fewer for Mr. Trump — a net gain of 45 for Mr. Trump.

Before the recount totals were announced, Mr. Trump signaled that he would continue to fight the results. “The Wisconsin recount is not about finding mistakes in the count, it is about finding people who have voted illegally, and that case will be brought after the recount is over, on Monday or Tuesday,” he wrote Saturday on Twitter. “We have found many illegal votes. Stay tuned!”

The Wisconsin Elections Commission has estimated that a statewide recount would cost $7.9 million. Milwaukee County estimated that its recount would cost about $2 million, and Dane County estimated about $740,808. According to state law, Mr. Trump’s team will be expected to foot the bill because the margin between the candidates exceeded 0.25 percent.

Both Milwaukee County and Dane County live-streamed their recounts. Mr. Trump has insisted that his campaign observers were unable to watch vote counts, a claim that has been disputed.

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