Andrew McCabe

Lawmakers and former federal officials weighed in Saturday on the firing of former FBI Deputy Director Andrew McCabe late Friday by Attorney General Jeff Sessions.

Former U.S. Attorney General Eric Holder, who served under former President Barack Obama, tweeted "this is dangerous" when referring to McCabe's ouster.

FBI Deputy Director Andrew McCabe, criticized by President Donald Trump and other Republicans for alleged bias against him and in favor of his 2016 Democratic opponent, Hillary Clinton, has stepped down, U.S. officials confirmed on Jan. 29.

U.S. President Donald Trump's growing anxiety about the federal Russia probe has spilled into public view with his warning that special counsel Robert Mueller would be out of bounds if he dug into the Trump family's finances. But that's a line that Mueller seems sure to cross.

President Donald Trump on May 11 ran into resistance for calling ousted FBI chief James Comey a "showboat," an attack that was swiftly contradicted by top U.S. senators and the acting FBI leader, who pledged that an investigation into possible Trump campaign ties to Russia would proceed with vigor.