Dems take up impeachment drive, say Trump betrayed oath

President Donald Trump speaks during a meeting with Iraqi President Barham Salih at the Lotte New York Palace hotel during the United Nations General Assembly, Tuesday, Sept. 24, 2019, in New York. (AP Photo/Evan Vucci)

House Speaker Nancy Pelosi of Calif., reads a statement announcing a formal impeachment inquiry into President Donald Trump, on Capitol Hill in Washington, Tuesday, Sept. 24, 2019. (AP Photo/Andrew Harnik)

Protesters with "Kremlin Annex" call to impeach President Donald Trump in Lafayette Square Park in front of the White House in Washington, Tuesday, Sept. 24, 2019. House Speaker Nancy Pelosi of Calif., announced a formal impeachment inquiry into President Donald Trump. (AP Photo/Carolyn Kaster)

WASHINGTON — House Speaker Nancy Pelosi on Tuesday launched a formal impeachment inquiry against President Donald Trump, yielding to mounting pressure from fellow Democrats and plunging a deeply divided nation into an election-year clash between Congress and the commander in chief.