Biden prepares for White House while Trump presses legal attack

President-elect Joe Biden plans further meetings on Wednesday to lay the groundwork for his new administration while President Donald Trump pursues a flurry of lawsuits challenging the election results in an effort to cling to power.

Trump's unsupported charges of election fraud have gained little traction so far. His campaign said on Tuesday it planned to file a lawsuit in Michigan to halt the state from certifying its results, a day after it brought a similar action in the battleground state of Pennsylvania.

Judges so far have tossed lawsuits in Michigan and Georgia brought by Trump's campaign, and legal experts say the litigation has little chance of changing the outcome of the Nov. 3 election.

Trump suffered another possible setback on Tuesday when Democrats said a postal worker who claimed he witnessed ballot tampering in Pennsylvania had recanted his allegations.

Some 80% of Americans, including half of Republicans, say Biden is the rightful winner, according to a Reuters/Ipsos poll released on Tuesday.

Biden plans to meet with advisors on Wednesday who are helping him prepare to take office on January 20, 2021.

He has tapped finance, trade and banking regulation experts for his transition team that range from core Democrats to progressive activists, reflecting ongoing debate within the party about how to address climate change, wealth inequality and other issues.

Biden is also tapping people who crafted tougher environmental rules while serving under President Barack Obama.

Biden secured the presidency on Saturday after television networks concluded he had won Pennsylvania and Nevada, giving him 279 Electoral College votes, more than the 270 needed to take the White House.

The outcome is still undecided in several states. Trump leads 50.0% to 48.7% in North Carolina, while Biden leads 49.5% to 49.2% in Georgia and 49.4% to 49.0% in Arizona, according to Edison Research.

Recounts are expected in several states, though they are unlikely to change the outcome.

Trump's fellow Republicans have largely stuck with him, saying he has a right to contest the result. But privately, some say Trump has a limited amount of time to make his case.

Trump will place a memorial wreath at the Tomb of the Unknowns in Arlington National Cemetery on Wednesday to mark Veterans Day. It will be his first public appearance, other than two golf outings, since an angry White House press conference last Thursday.

Biden says Trump's refusal to admit defeat - a break from historical norms - isn't affecting his plans. He said on Tuesday he thought it was an "embarrassment" that Trump had not conceded.

The Trump administration is not cooperating with Biden's team. Government analysts have been instructed to continue assembling a budget proposal that would be released in February, after Trump is due to leave office.

The Biden transition team has been unable to move into federal government office space or tap funds to hire staff because a Trump appointee who heads the federal office charged with recognizing election results has not yet done so.

US Secretary of State Mike Pompeo on Tuesday predicted a "second Trump administration," in comments at odds with congratulatory phone calls from the leaders of Britain, France, Germany and Ireland to Biden.

Trump installed loyalists in top positions at the Pentagon, one day after firing Defense Secretary Mark Esper, which could potentially make it easier to use US troops to respond to domestic protests.