How Donald Trump went from a diminished ex-president to the GOP's dominant front-runner

When he left the White House, Donald Trump was a pariah. After years of bending Washington to his will with a single tweet, Trump was, at least for a moment, diminished. He was a one-term Republican president rejected by voters and then shunned by large swaths of his party after his refusal to accept his 2020 election defeat culminated in an insurrection at the US Capitol that sent lawmakers running for their lives.