FILE - Homeland Security official Miles Taylor, center, departs after the Republican Caucus luncheon on Capitol Hill, March 5, 2019, in Washington.

FILE - Homeland Security official Miles Taylor, center, departs after the Republican Caucus luncheon on Capitol Hill, March 5, 2019, in Washington.

FILE - Homeland Security official Miles Taylor, center, departs after the Republican Caucus luncheon on Capitol Hill, March 5, 2019, in Washington.

FILE - Homeland Security official Miles Taylor, center, departs after the Republican Caucus luncheon on Capitol Hill, March 5, 2019, in Washington.

FILE - Homeland Security official Miles Taylor, center, departs after the Republican Caucus luncheon on Capitol Hill, March 5, 2019, in Washington.

FILE - Homeland Security official Miles Taylor, center, departs after the Republican Caucus luncheon on Capitol Hill, March 5, 2019, in Washington.

Miles Taylor, a former deputy chief of staff in the Department of Homeland Security during the first Trump administration who wrote an op-ed criticizing President Trump, said the president is ...

Miles Taylor, once chief of staff at the Department of Homeland Security, warned in an interview with The Associated Press of the far-reaching implications of Trump's April 9 memorandum ...