Barack Obama: “There are no quick or easy fixes to this crisis, which has been many years in the making, and it's likely to get worse…”

Because if this becomes the new normal, there’s no reason to believe it will stop with her — or that future presidents, in either party, won’t do the same.

A drift towards extremism was "not inevitable

The fact that any president, or any administration, is willing to engage in such transparent efforts to intimidate someone should outrage all Americans, regardless of how they feel about Congresswoman Omar’s political views.

I think when we act on that basis, it doesn't always work out, but over time things do get better.