Trump advisers have grown more vocal in conversations with Mr. Trump in recent days that they don’t see a path to victory, even if his legal efforts meet some success, a White House official said, though some advisers have continued to tell the president he still has a shot. An official said Mr. Trump understands that the fight isn’t winnable but characterized his feelings as: “Let me have the fight.”

One potential strategy discussed by Mr. Trump’s legal team would be attempting to get court orders to delay vote certification in critical states, potentially positioning Republican-controlled state legislatures to appoint pro-Trump electors who would swing the Electoral College in his favor, according to people familiar with the discussions…

Some of Mr. Trump’s advisers and lawyers said there isn’t an overarching legal theory or coordination behind the campaign’s efforts. The legal battle likely will conclude with Mr. Trump claiming the election was rigged against him and that he fought the outcome, the White House official said.

“I don’t think there’s really a coherent strategy,” said one Republican official.