Since the announcement of his victory in the US presidential election on Saturday, Joe Biden has been working to prepare for his assumption of office.

His rival Donald Trump has not sacrificed to the tradition of the congratulatory phone call to the winner.

Far from it, he continues to denounce fraud.

On Sunday, one went to mass while the other returned to play golf.

For Joe Biden and Donald Trump, the program for the next few days is quite different.

If the first, officially "president-elect", is already preparing to take office, the other, officially defeated, intends to increase the number of appeals and contest the result of the American presidential election.

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Biden wants everything to be ready for January

Now president-elect therefore, Joe Biden really gets to work on Monday with the appointment of his "task force" against the pandemic.

This consists of a team of twelve people, doctors, researchers and public health experts, responsible for advising him in the fight against Covid-19.

Joe Biden repeated throughout his companion that he would listen to scientists, unlike his opponent.

He is to speak in public immediately after this meeting.

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In the afternoon, the Democrat will work on the transition with his team.

He must indeed build his administration: appoint not only his cabinet and his ministers but also renew hundreds of key positions in federal agencies.

Additionally, to prepare for his takeover in January, Biden's transition team launched an official website focused on the four priorities of his tenure: pandemic, economy, climate change and racial justice.

The goal is to put everything in place so that the new president can sign several decrees from day one.

It will notably be a question of the return of the United States in the Paris climate agreements and within the WHO.

Trump begins legal proceedings

For his part, Donald Trump seems determined to not let go.

The outgoing president continues to refuse his defeat.

On Monday, he is expected to announce legal proceedings to challenge the results in several states.

A relative has been appointed to oversee the vote recount in Georgia and his campaign team is flooding supporters with emails asking for money.

This should make it possible to finance the legal battle desired by Donald Trump.

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Given the voice discrepancies and the lack of evidence of a large-scale fraud, experts doubt that he will succeed in his fight.

But he does not budge: according to the media, he even plans to go back on the road to hold big meetings and get his message across.

In the White House, advisers, relatives and even Melania Trump are trying to convince him to accept his defeat.