Via Politico:

Al and Tipper Gore, whose playful romance enlivened Washington and the campaign trail for a quarter century, have decided to separate after 40 years of marriage, the couple told friends Tuesday.

In an “Email from Al and Tipper Gore,” the couple said: “We are announcing today that after a great deal of thought and discussion, we have decided to separate."

They described the decision as "mutual and mutually supportive."