From your own article.
“For Trump and his allies were running their own campaign to spoil the election. The President spent months insisting that mail ballots were a Democratic plot and the election would be “rigged.” His henchmen at the state level sought to block their use, while his lawyers brought dozens of spurious suits to make it more difficult to vote–an intensification of the GOP’s legacy of suppressive tactics. Before the election, Trump plotted to block a legitimate vote count. And he spent the months following Nov. 3 trying to steal the election he’d lost–with lawsuits and conspiracy theories, pressure on state and local officials, and finally summoning his army of supporters to the Jan. 6 rally that ended in deadly violence at the Capitol.”