President Trump responded Wednesday to reports that former CIA Director John Brennan and former FBI Director James Comey are being investigated over allegations that they made false statements to Congress during the Russia probe.

The Secret Service had the former F.B.I. director James B. Comey followed by law enforcement authorities in unmarked cars and street clothes and tracked the location of his cellphone the day after he...

The Secret Service said on Thursday that it was suspending six agents involved in securing the site of a campaign rally where a gunman tried to assassinate Donald J. Trump last summer.