Super Tuesday in the United States: the warning signs for Joe Biden and Donald Trump. The departure of Nikky Haley could bring with it a strong flow of anti-Trump votes.

The “uncommitted” vote of progressive protest against Biden is a threat that the president must resolve if he wants to remain in the White House. The first warning sign was last week, when 13% of the votes chose the “non-committed option” in Michigan. The vote protests against Biden continued without major rivals.